76718513 has 2 divisors, whose sum is σ = 76718514. Its totient is φ = 76718512.

The previous prime is 76718483. The next prime is 76718527. The reversal of 76718513 is 31581767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 889249 = 8708^2 + 943^2 .

It is a cyclic number.

It is not a de Polignac number, because 76718513 - 2²² = 72524209 is a prime.

It is not a weakly prime, because it can be changed into another prime (76718533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38359256 + 38359257.

It is an arithmetic number, because the mean of its divisors is an integer number (38359257).

Almost surely, 2^76718513 is an apocalyptic number.

It is an amenable number.

76718513 is a deficient number, since it is larger than the sum of its proper divisors (1).

76718513 is an equidigital number, since it uses as much as digits as its factorization.

76718513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 76718513 is about 8758.9104916080. The cubic root of 76718513 is about 424.9130396475.

The spelling of 76718513 in words is "seventy-six million, seven hundred eighteen thousand, five hundred thirteen".