76982431 has 2 divisors, whose sum is σ = 76982432. Its totient is φ = 76982430.

The previous prime is 76982429. The next prime is 76982497. The reversal of 76982431 is 13428967.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76982431 - 2¹ = 76982429 is a prime.

It is a super-2 number, since 2×76982431² = 11852589365339522, which contains 22 as substring.

Together with 76982429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76982131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38491215 + 38491216.

It is an arithmetic number, because the mean of its divisors is an integer number (38491216).

Almost surely, 2^76982431 is an apocalyptic number.

76982431 is a deficient number, since it is larger than the sum of its proper divisors (1).

76982431 is an equidigital number, since it uses as much as digits as its factorization.

76982431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 76982431 is about 8773.9632435975. The cubic root of 76982431 is about 425.3997272696.

The spelling of 76982431 in words is "seventy-six million, nine hundred eighty-two thousand, four hundred thirty-one".