77960713 has 2 divisors, whose sum is σ = 77960714. Its totient is φ = 77960712.

The previous prime is 77960711. The next prime is 77960737. The reversal of 77960713 is 31706977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56505289 + 21455424 = 7517^2 + 4632^2 .

It is an emirp because it is prime and its reverse (31706977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77960713 - 2¹ = 77960711 is a prime.

Together with 77960711, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (77960711) 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, 38980356 + 38980357.

It is an arithmetic number, because the mean of its divisors is an integer number (38980357).

Almost surely, 2^77960713 is an apocalyptic number.

It is an amenable number.

77960713 is a deficient number, since it is larger than the sum of its proper divisors (1).

77960713 is an equidigital number, since it uses as much as digits as its factorization.

77960713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 77960713 is about 8829.5363977958. The cubic root of 77960713 is about 427.1941211048.

The spelling of 77960713 in words is "seventy-seven million, nine hundred sixty thousand, seven hundred thirteen".