715776761 has 6 divisors (see below), whose sum is σ = 832638330. Its totient is φ = 613522896.

The previous prime is 715776739. The next prime is 715776791. The reversal of 715776761 is 167677517.

It can be written as a sum of positive squares in only one way, i.e., 682829161 + 32947600 = 26131^2 + 5740^2 .

It is not a de Polignac number, because 715776761 - 2⁶ = 715776697 is a prime.

It is a super-2 number, since 2×715776761² = 1024672743175302242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715776791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7303796 + ... + 7303893.

It is an arithmetic number, because the mean of its divisors is an integer number (138773055).

Almost surely, 2^715776761 is an apocalyptic number.

It is an amenable number.

715776761 is a deficient number, since it is larger than the sum of its proper divisors (116861569).

715776761 is a wasteful number, since it uses less digits than its factorization.

715776761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14607703 (or 14607696 counting only the distinct ones).

The product of its digits is 432180, while the sum is 47.

The square root of 715776761 is about 26754.0045787542. The cubic root of 715776761 is about 894.5251003651.

The spelling of 715776761 in words is "seven hundred fifteen million, seven hundred seventy-six thousand, seven hundred sixty-one".