764515057 has 8 divisors (see below), whose sum is σ = 775927296. Its totient is φ = 753128352.

The previous prime is 764515049. The next prime is 764515067. The reversal of 764515057 is 750515467.

It is a happy number.

764515057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 764515057 - 2³ = 764515049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764515067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58848 + ... + 70654.

It is an arithmetic number, because the mean of its divisors is an integer number (96990912).

Almost surely, 2^764515057 is an apocalyptic number.

It is an amenable number.

764515057 is a deficient number, since it is larger than the sum of its proper divisors (11412239).

764515057 is a wasteful number, since it uses less digits than its factorization.

764515057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 764515057 is about 27649.8654065440. The cubic root of 764515057 is about 914.3841325311.

The spelling of 764515057 in words is "seven hundred sixty-four million, five hundred fifteen thousand, fifty-seven".