976664831 has 2 divisors, whose sum is σ = 976664832. Its totient is φ = 976664830.

The previous prime is 976664789. The next prime is 976664833. The reversal of 976664831 is 138466679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 976664831 - 2¹⁴ = 976648447 is a prime.

It is a super-2 number, since 2×976664831² = 1907748384224517122, which contains 22 as substring.

Together with 976664833, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 976664831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (976664833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488332415 + 488332416.

It is an arithmetic number, because the mean of its divisors is an integer number (488332416).

Almost surely, 2^976664831 is an apocalyptic number.

976664831 is a deficient number, since it is larger than the sum of its proper divisors (1).

976664831 is an equidigital number, since it uses as much as digits as its factorization.

976664831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The square root of 976664831 is about 31251.6372531104. The cubic root of 976664831 is about 992.1603102083.

It can be divided in two parts, 9766648 and 31, that added together give a palindrome (9766679).

The spelling of 976664831 in words is "nine hundred seventy-six million, six hundred sixty-four thousand, eight hundred thirty-one".