3971372 has 6 divisors (see below), whose sum is σ = 6949908. Its totient is φ = 1985684.

The previous prime is 3971333. The next prime is 3971377. The reversal of 3971372 is 2731793.

3971372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3971377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496418 + ... + 496425.

It is an arithmetic number, because the mean of its divisors is an integer number (1158318).

Almost surely, 2^3971372 is an apocalyptic number.

It is an amenable number.

3971372 is a deficient number, since it is larger than the sum of its proper divisors (2978536).

3971372 is a wasteful number, since it uses less digits than its factorization.

3971372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992847 (or 992845 counting only the distinct ones).

The product of its digits is 7938, while the sum is 32.

The square root of 3971372 is about 1992.8301483067. The cubic root of 3971372 is about 158.3604971554.

The spelling of 3971372 in words is "three million, nine hundred seventy-one thousand, three hundred seventy-two".