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3896897 = 15724821
BaseRepresentation
bin1110110111011001000001
321022222112112
432313121001
51444200042
6215305105
745060134
oct16673101
97288475
103896897
112221884
12137b195
13a65974
1473621b
1551e982
hex3b7641

3896897 has 4 divisors (see below), whose sum is σ = 3921876. Its totient is φ = 3871920.

The previous prime is 3896887. The next prime is 3896903. The reversal of 3896897 is 7986983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7986983 = 21137853.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 3094081 = 896^2 + 1759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3896897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3896807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12254 + ... + 12567.

It is an arithmetic number, because the mean of its divisors is an integer number (980469).

Almost surely, 23896897 is an apocalyptic number.

It is an amenable number.

3896897 is a deficient number, since it is larger than the sum of its proper divisors (24979).

3896897 is a wasteful number, since it uses less digits than its factorization.

3896897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24978.

The product of its digits is 653184, while the sum is 50.

The square root of 3896897 is about 1974.0559769166. The cubic root of 3896897 is about 157.3643343385.

The spelling of 3896897 in words is "three million, eight hundred ninety-six thousand, eight hundred ninety-seven".

Divisors: 1 157 24821 3896897