3117972 has 96 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 823680.

The previous prime is 3117967. The next prime is 3117991. The reversal of 3117972 is 2797113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39429 + ... + 39507.

It is an arithmetic number, because the mean of its divisors is an integer number (94080).

Almost surely, 2^3117972 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 3117972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4515840).

3117972 is an abundant number, since it is smaller than the sum of its proper divisors (5913708).

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

3117972 is a wasteful number, since it uses less digits than its factorization.

3117972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 131 counting only the distinct ones).

The product of its digits is 2646, while the sum is 30.

The square root of 3117972 is about 1765.7780154935. The cubic root of 3117972 is about 146.0912046636.

The spelling of 3117972 in words is "three million, one hundred seventeen thousand, nine hundred seventy-two".