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3976471 = 10139371
BaseRepresentation
bin1111001010110100010111
321111000200201
433022310113
52004221341
6221121331
745541132
oct17126427
97430621
103976471
112276644
1213b9247
13a92c55
14757219
15538331
hex3cad17

3976471 has 4 divisors (see below), whose sum is σ = 4015944. Its totient is φ = 3937000.

The previous prime is 3976459. The next prime is 3976477. The reversal of 3976471 is 1746793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1746793 = 7432351.

It is a cyclic number.

It is not a de Polignac number, because 3976471 - 25 = 3976439 is a prime.

It is a super-3 number, since 3×39764713 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

3976471 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3976471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3976477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19585 + ... + 19786.

It is an arithmetic number, because the mean of its divisors is an integer number (1003986).

Almost surely, 23976471 is an apocalyptic number.

3976471 is a deficient number, since it is larger than the sum of its proper divisors (39473).

3976471 is a wasteful number, since it uses less digits than its factorization.

3976471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39472.

The product of its digits is 31752, while the sum is 37.

The square root of 3976471 is about 1994.1090742484. The cubic root of 3976471 is about 158.4282432506.

The spelling of 3976471 in words is "three million, nine hundred seventy-six thousand, four hundred seventy-one".

Divisors: 1 101 39371 3976471