715777313 has 2 divisors, whose sum is σ = 715777314. Its totient is φ = 715777312.

The previous prime is 715777289. The next prime is 715777339. The reversal of 715777313 is 313777517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508186849 + 207590464 = 22543^2 + 14408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-715777313 is a prime.

It is not a weakly prime, because it can be changed into another prime (715777393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357888656 + 357888657.

It is an arithmetic number, because the mean of its divisors is an integer number (357888657).

Almost surely, 2^715777313 is an apocalyptic number.

It is an amenable number.

715777313 is a deficient number, since it is larger than the sum of its proper divisors (1).

715777313 is an equidigital number, since it uses as much as digits as its factorization.

715777313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108045, while the sum is 41.

The square root of 715777313 is about 26754.0148949648. The cubic root of 715777313 is about 894.5253303147.

The spelling of 715777313 in words is "seven hundred fifteen million, seven hundred seventy-seven thousand, three hundred thirteen".