972798018 has 64 divisors (see below), whose sum is σ = 2080097280. Its totient is φ = 302626368.

The previous prime is 972797999. The next prime is 972798059. The reversal of 972798018 is 810897279.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326780 + ... + 1327512.

It is an arithmetic number, because the mean of its divisors is an integer number (32501520).

Almost surely, 2^972798018 is an apocalyptic number.

972798018 is an abundant number, since it is smaller than the sum of its proper divisors (1107299262).

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

972798018 is a wasteful number, since it uses less digits than its factorization.

972798018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 972798018 is about 31189.7101301054. The cubic root of 972798018 is about 990.8491907786.

The spelling of 972798018 in words is "nine hundred seventy-two million, seven hundred ninety-eight thousand, eighteen".