764440627 has 16 divisors (see below), whose sum is σ = 818737920. Its totient is φ = 712004832.

The previous prime is 764440603. The next prime is 764440631. The reversal of 764440627 is 726044467.

It is a cyclic number.

It is not a de Polignac number, because 764440627 - 2⁷ = 764440499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 764440627.

It is not an unprimeable number, because it can be changed into a prime (764440697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383728 + ... + 385714.

It is an arithmetic number, because the mean of its divisors is an integer number (51171120).

Almost surely, 2^764440627 is an apocalyptic number.

764440627 is a deficient number, since it is larger than the sum of its proper divisors (54297293).

764440627 is a wasteful number, since it uses less digits than its factorization.

764440627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 225792, while the sum is 40.

The square root of 764440627 is about 27648.5194359481. The cubic root of 764440627 is about 914.3544580252.

The spelling of 764440627 in words is "seven hundred sixty-four million, four hundred forty thousand, six hundred twenty-seven".