3156972 has 96 divisors (see below), whose sum is σ = 9408000. Its totient is φ = 818496.

The previous prime is 3156971. The next prime is 3156977. The reversal of 3156972 is 2796513.

3156972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (11340) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3156971) 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 in 31 ways as a sum of consecutive naturals, for example, 53479 + ... + 53537.

It is an arithmetic number, because the mean of its divisors is an integer number (98000).

Almost surely, 2^3156972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3156972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4704000).

3156972 is an abundant number, since it is smaller than the sum of its proper divisors (6251028).

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

3156972 is a wasteful number, since it uses less digits than its factorization.

3156972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 84 counting only the distinct ones).

The product of its digits is 11340, while the sum is 33.

The square root of 3156972 is about 1776.7869877957. The cubic root of 3156972 is about 146.6977918332.

The spelling of 3156972 in words is "three million, one hundred fifty-six thousand, nine hundred seventy-two".