76651513 has 2 divisors, whose sum is σ = 76651514. Its totient is φ = 76651512.

The previous prime is 76651511. The next prime is 76651541. The reversal of 76651513 is 31515667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62536464 + 14115049 = 7908^2 + 3757^2 .

It is a cyclic number.

It is not a de Polignac number, because 76651513 - 2¹ = 76651511 is a prime.

Together with 76651511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76651511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38325756 + 38325757.

It is an arithmetic number, because the mean of its divisors is an integer number (38325757).

Almost surely, 2^76651513 is an apocalyptic number.

It is an amenable number.

76651513 is a deficient number, since it is larger than the sum of its proper divisors (1).

76651513 is an equidigital number, since it uses as much as digits as its factorization.

76651513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 76651513 is about 8755.0849795990. The cubic root of 76651513 is about 424.7893082552.

The spelling of 76651513 in words is "seventy-six million, six hundred fifty-one thousand, five hundred thirteen".