715775009 has 2 divisors, whose sum is σ = 715775010. Its totient is φ = 715775008.

The previous prime is 715774999. The next prime is 715775063. The reversal of 715775009 is 900577517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540795025 + 174979984 = 23255^2 + 13228^2 .

It is a cyclic number.

It is not a de Polignac number, because 715775009 - 2⁴ = 715774993 is a prime.

It is not a weakly prime, because it can be changed into another prime (715775609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357887504 + 357887505.

It is an arithmetic number, because the mean of its divisors is an integer number (357887505).

Almost surely, 2^715775009 is an apocalyptic number.

It is an amenable number.

715775009 is a deficient number, since it is larger than the sum of its proper divisors (1).

715775009 is an equidigital number, since it uses as much as digits as its factorization.

715775009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77175, while the sum is 41.

The square root of 715775009 is about 26753.9718359723. The cubic root of 715775009 is about 894.5243705243.

The spelling of 715775009 in words is "seven hundred fifteen million, seven hundred seventy-five thousand, nine".