764754321 has 4 divisors (see below), whose sum is σ = 1019672432. Its totient is φ = 509836212.

The previous prime is 764754317. The next prime is 764754329. The reversal of 764754321 is 123457467.

764754321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 764754321 - 2² = 764754317 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 764754321.

It is not an unprimeable number, because it can be changed into a prime (764754329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127459051 + ... + 127459056.

It is an arithmetic number, because the mean of its divisors is an integer number (254918108).

Almost surely, 2^764754321 is an apocalyptic number.

It is an amenable number.

764754321 is a deficient number, since it is larger than the sum of its proper divisors (254918111).

764754321 is a wasteful number, since it uses less digits than its factorization.

764754321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254918110.

The product of its digits is 141120, while the sum is 39.

The square root of 764754321 is about 27654.1917437484. The cubic root of 764754321 is about 914.4795116798.

The spelling of 764754321 in words is "seven hundred sixty-four million, seven hundred fifty-four thousand, three hundred twenty-one".