3856957 has 8 divisors (see below), whose sum is σ = 4175136. Its totient is φ = 3541872.

The previous prime is 3856949. The next prime is 3856967. The reversal of 3856957 is 7596583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3856957 - 2³ = 3856949 is a prime.

It is a super-2 number, since 2×3856957² = 29752234599698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298 + ... + 3604.

It is an arithmetic number, because the mean of its divisors is an integer number (521892).

Almost surely, 2^3856957 is an apocalyptic number.

It is an amenable number.

3856957 is a deficient number, since it is larger than the sum of its proper divisors (318179).

3856957 is a wasteful number, since it uses less digits than its factorization.

3856957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547.

The product of its digits is 226800, while the sum is 43.

The square root of 3856957 is about 1963.9136946414. The cubic root of 3856957 is about 156.8248686130.

The spelling of 3856957 in words is "three million, eight hundred fifty-six thousand, nine hundred fifty-seven".