3971572 has 12 divisors (see below), whose sum is σ = 7582176. Its totient is φ = 1805240.

The previous prime is 3971549. The next prime is 3971581. The reversal of 3971572 is 2751793.

It is a congruent number.

It is an unprimeable number.

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, 45088 + ... + 45175.

It is an arithmetic number, because the mean of its divisors is an integer number (631848).

Almost surely, 2^3971572 is an apocalyptic number.

It is an amenable number.

3971572 is a deficient number, since it is larger than the sum of its proper divisors (3610604).

3971572 is a wasteful number, since it uses less digits than its factorization.

3971572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90278 (or 90276 counting only the distinct ones).

The product of its digits is 13230, while the sum is 34.

The square root of 3971572 is about 1992.8803275661. The cubic root of 3971572 is about 158.3631554784.

The spelling of 3971572 in words is "three million, nine hundred seventy-one thousand, five hundred seventy-two".