3971924 has 12 divisors (see below), whose sum is σ = 7582848. Its totient is φ = 1805400.

The previous prime is 3971917. The next prime is 3971963. The reversal of 3971924 is 4291793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45092 + ... + 45179.

It is an arithmetic number, because the mean of its divisors is an integer number (631904).

Almost surely, 2^3971924 is an apocalyptic number.

It is an amenable number.

3971924 is a deficient number, since it is larger than the sum of its proper divisors (3610924).

3971924 is a wasteful number, since it uses less digits than its factorization.

3971924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90286 (or 90284 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 3971924 is about 1992.9686399941. The cubic root of 3971924 is about 158.3678339100.

The spelling of 3971924 in words is "three million, nine hundred seventy-one thousand, nine hundred twenty-four".