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3970853 = 5577129
BaseRepresentation
bin1111001001011100100101
321110201222122
433021130211
52004031403
6221035325
745515555
oct17113445
97421878
103970853
1122723a7
1213b5b45
13a90523
14755165
15536838
hex3c9725

3970853 has 4 divisors (see below), whose sum is σ = 3978540. Its totient is φ = 3963168.

The previous prime is 3970849. The next prime is 3970859. The reversal of 3970853 is 3580793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 2666689 = 1142^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 3970853 - 22 = 3970849 is a prime.

It is a super-3 number, since 3×39708533 (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970859) 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, 3008 + ... + 4121.

It is an arithmetic number, because the mean of its divisors is an integer number (994635).

Almost surely, 23970853 is an apocalyptic number.

It is an amenable number.

3970853 is a deficient number, since it is larger than the sum of its proper divisors (7687).

3970853 is an equidigital number, since it uses as much as digits as its factorization.

3970853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 3970853 is about 1992.6999272344. The cubic root of 3970853 is about 158.3535983911.

The spelling of 3970853 in words is "three million, nine hundred seventy thousand, eight hundred fifty-three".

Divisors: 1 557 7129 3970853