912501972 has 18 divisors (see below), whose sum is σ = 2306602298. Its totient is φ = 304167312.

The previous prime is 912501949. The next prime is 912501983. The reversal of 912501972 is 279105219.

It can be written as a sum of positive squares in only one way, i.e., 706177476 + 206324496 = 26574^2 + 14364^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 25347277 = 912501972 / (9 + 1 + 2 + 5 + 0 + 1 + 9 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12673603 + ... + 12673674.

Almost surely, 2^912501972 is an apocalyptic number.

It is an amenable number.

912501972 is an abundant number, since it is smaller than the sum of its proper divisors (1394100326).

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

912501972 is a wasteful number, since it uses less digits than its factorization.

912501972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25347287 (or 25347282 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 912501972 is about 30207.6475747450. The cubic root of 912501972 is about 969.9394059998.

The spelling of 912501972 in words is "nine hundred twelve million, five hundred one thousand, nine hundred seventy-two".