764274385 has 16 divisors (see below), whose sum is σ = 1051739136. Its totient is φ = 522278208.

The previous prime is 764274367. The next prime is 764274391. The reversal of 764274385 is 583472467.

It is a cyclic number.

It is not a de Polignac number, because 764274385 - 2⁵ = 764274353 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27009 + ... + 47518.

It is an arithmetic number, because the mean of its divisors is an integer number (65733696).

Almost surely, 2^764274385 is an apocalyptic number.

It is an amenable number.

764274385 is a deficient number, since it is larger than the sum of its proper divisors (287464751).

764274385 is a wasteful number, since it uses less digits than its factorization.

764274385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74832.

The product of its digits is 1128960, while the sum is 46.

The square root of 764274385 is about 27645.5129270556. The cubic root of 764274385 is about 914.2881720253.

The spelling of 764274385 in words is "seven hundred sixty-four million, two hundred seventy-four thousand, three hundred eighty-five".