972688784 has 20 divisors (see below), whose sum is σ = 1887677916. Its totient is φ = 485546112.

The previous prime is 972688741. The next prime is 972688789. The reversal of 972688784 is 487886279.

972688784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37552384 + 935136400 = 6128^2 + 30580^2 .

It is a super-2 number, since 2×972688784² = 1892246941038797312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (972688789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39779 + ... + 59394.

Almost surely, 2^972688784 is an apocalyptic number.

It is an amenable number.

972688784 is a deficient number, since it is larger than the sum of its proper divisors (914989132).

972688784 is a wasteful number, since it uses less digits than its factorization.

972688784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99794 (or 99788 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 59.

The square root of 972688784 is about 31187.9589585468. The cubic root of 972688784 is about 990.8121024109.

The spelling of 972688784 in words is "nine hundred seventy-two million, six hundred eighty-eight thousand, seven hundred eighty-four".