3972908 has 12 divisors (see below), whose sum is σ = 6966792. Its totient is φ = 1982400.

The previous prime is 3972901. The next prime is 3972911. The reversal of 3972908 is 8092793.

It is not an unprimeable number, because it can be changed into a prime (3972901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2708 + ... + 3908.

It is an arithmetic number, because the mean of its divisors is an integer number (580566).

Almost surely, 2^3972908 is an apocalyptic number.

It is an amenable number.

3972908 is a deficient number, since it is larger than the sum of its proper divisors (2993884).

3972908 is a wasteful number, since it uses less digits than its factorization.

3972908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3972908 is about 1993.2154926149. The cubic root of 3972908 is about 158.3809107867.

Subtracting 3972908 from its reverse (8092793), we obtain a triangular number (4119885 = T₂₈₇₀).

The spelling of 3972908 in words is "three million, nine hundred seventy-two thousand, nine hundred eight".