972626731 has 4 divisors (see below), whose sum is σ = 972745632. Its totient is φ = 972507832.

The previous prime is 972626693. The next prime is 972626747. The reversal of 972626731 is 137626279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 972626731 - 2¹¹ = 972624683 is a prime.

It is a super-2 number, since 2×972626731² = 1892005515711492722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972626771) 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, 46195 + ... + 63868.

It is an arithmetic number, because the mean of its divisors is an integer number (243186408).

Almost surely, 2^972626731 is an apocalyptic number.

972626731 is a deficient number, since it is larger than the sum of its proper divisors (118901).

972626731 is a wasteful number, since it uses less digits than its factorization.

972626731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118900.

The product of its digits is 190512, while the sum is 43.

The square root of 972626731 is about 31186.9641196446. The cubic root of 972626731 is about 990.7910322351.

The spelling of 972626731 in words is "nine hundred seventy-two million, six hundred twenty-six thousand, seven hundred thirty-one".