76982861 has 2 divisors, whose sum is σ = 76982862. Its totient is φ = 76982860.

The previous prime is 76982837. The next prime is 76982869. The reversal of 76982861 is 16828967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62504836 + 14478025 = 7906^2 + 3805^2 .

It is an emirp because it is prime and its reverse (16828967) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76982861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76982869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38491430 + 38491431.

It is an arithmetic number, because the mean of its divisors is an integer number (38491431).

Almost surely, 2^76982861 is an apocalyptic number.

It is an amenable number.

76982861 is a deficient number, since it is larger than the sum of its proper divisors (1).

76982861 is an equidigital number, since it uses as much as digits as its factorization.

76982861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 76982861 is about 8773.9877478829. The cubic root of 76982861 is about 425.4005193185.

The spelling of 76982861 in words is "seventy-six million, nine hundred eighty-two thousand, eight hundred sixty-one".