972662531 has 4 divisors (see below), whose sum is σ = 1029877992. Its totient is φ = 915447072.

The previous prime is 972662521. The next prime is 972662533. The reversal of 972662531 is 135266279.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972662531 is a prime.

It is a super-2 number, since 2×972662531² = 1892144798422651922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972662533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28607705 + ... + 28607738.

It is an arithmetic number, because the mean of its divisors is an integer number (257469498).

Almost surely, 2^972662531 is an apocalyptic number.

972662531 is a deficient number, since it is larger than the sum of its proper divisors (57215461).

972662531 is a wasteful number, since it uses less digits than its factorization.

972662531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57215460.

The product of its digits is 136080, while the sum is 41.

The square root of 972662531 is about 31187.5380721211. The cubic root of 972662531 is about 990.8031882804.

The spelling of 972662531 in words is "nine hundred seventy-two million, six hundred sixty-two thousand, five hundred thirty-one".