3925864 has 8 divisors (see below), whose sum is σ = 7361010. Its totient is φ = 1962928.

The previous prime is 3925843. The next prime is 3925877. The reversal of 3925864 is 4685293.

It can be written as a sum of positive squares in only one way, i.e., 3392964 + 532900 = 1842^2 + 730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245359 + ... + 245374.

Almost surely, 2^3925864 is an apocalyptic number.

It is an amenable number.

3925864 is a deficient number, since it is larger than the sum of its proper divisors (3435146).

3925864 is a wasteful number, since it uses less digits than its factorization.

3925864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490739 (or 490735 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 3925864 is about 1981.3793175462. The cubic root of 3925864 is about 157.7532869184.

The spelling of 3925864 in words is "three million, nine hundred twenty-five thousand, eight hundred sixty-four".