764750257 has 8 divisors (see below), whose sum is σ = 778377600. Its totient is φ = 751221744.

The previous prime is 764750251. The next prime is 764750269. The reversal of 764750257 is 752057467.

764750257 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 not a de Polignac number, because 764750257 - 2¹⁵ = 764717489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764750251) 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, 9007 + ... + 40132.

It is an arithmetic number, because the mean of its divisors is an integer number (97297200).

Almost surely, 2^764750257 is an apocalyptic number.

It is an amenable number.

764750257 is a deficient number, since it is larger than the sum of its proper divisors (13627343).

764750257 is a wasteful number, since it uses less digits than its factorization.

764750257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49415.

The product of its (nonzero) digits is 411600, while the sum is 43.

The square root of 764750257 is about 27654.1182647359. The cubic root of 764750257 is about 914.4778917908.

The spelling of 764750257 in words is "seven hundred sixty-four million, seven hundred fifty thousand, two hundred fifty-seven".