764255117 has 4 divisors (see below), whose sum is σ = 765906240. Its totient is φ = 762603996.

The previous prime is 764255087. The next prime is 764255123. The reversal of 764255117 is 711552467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 764255117 - 2⁶ = 764255053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764255137) 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 3 ways as a sum of consecutive naturals, for example, 824867 + ... + 825792.

It is an arithmetic number, because the mean of its divisors is an integer number (191476560).

Almost surely, 2^764255117 is an apocalyptic number.

It is an amenable number.

764255117 is a deficient number, since it is larger than the sum of its proper divisors (1651123).

764255117 is a wasteful number, since it uses less digits than its factorization.

764255117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651122.

The product of its digits is 58800, while the sum is 38.

The square root of 764255117 is about 27645.1644415438. The cubic root of 764255117 is about 914.2804886362.

The spelling of 764255117 in words is "seven hundred sixty-four million, two hundred fifty-five thousand, one hundred seventeen".