76775317 has 2 divisors, whose sum is σ = 76775318. Its totient is φ = 76775316.

The previous prime is 76775291. The next prime is 76775359. The reversal of 76775317 is 71357767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40883236 + 35892081 = 6394^2 + 5991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76775317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76775617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38387658 + 38387659.

It is an arithmetic number, because the mean of its divisors is an integer number (38387659).

Almost surely, 2^76775317 is an apocalyptic number.

It is an amenable number.

76775317 is a deficient number, since it is larger than the sum of its proper divisors (1).

76775317 is an equidigital number, since it uses as much as digits as its factorization.

76775317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216090, while the sum is 43.

The square root of 76775317 is about 8762.1525323404. The cubic root of 76775317 is about 425.0178852912.

The spelling of 76775317 in words is "seventy-six million, seven hundred seventy-five thousand, three hundred seventeen".