3975920 has 40 divisors (see below), whose sum is σ = 9957696. Its totient is φ = 1467648.

The previous prime is 3975911. The next prime is 3975947. The reversal of 3975920 is 295793.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872 + ... + 2951.

Almost surely, 2^3975920 is an apocalyptic number.

It is an amenable number.

3975920 is an abundant number, since it is smaller than the sum of its proper divisors (5981776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3975920 is a wasteful number, since it uses less digits than its factorization.

3975920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3843 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 3975920 is about 1993.9709125261. The cubic root of 3975920 is about 158.4209253721.

The spelling of 3975920 in words is "three million, nine hundred seventy-five thousand, nine hundred twenty".