872972973 has 6 divisors (see below), whose sum is σ = 1260960974. Its totient is φ = 581981976.

The previous prime is 872972953. The next prime is 872972977. The reversal of 872972973 is 379279278.

It can be written as a sum of positive squares in only one way, i.e., 780755364 + 92217609 = 27942^2 + 9603^2 .

It is not a de Polignac number, because 872972973 - 2²⁸ = 604537517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872972977) 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 5 ways as a sum of consecutive naturals, for example, 48498490 + ... + 48498507.

Almost surely, 2^872972973 is an apocalyptic number.

It is an amenable number.

872972973 is a deficient number, since it is larger than the sum of its proper divisors (387988001).

872972973 is a wasteful number, since it uses less digits than its factorization.

872972973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96997003 (or 96997000 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 872972973 is about 29546.1160391683. The cubic root of 872972973 is about 955.7264368579.

The spelling of 872972973 in words is "eight hundred seventy-two million, nine hundred seventy-two thousand, nine hundred seventy-three".