764304431 has 16 divisors (see below), whose sum is σ = 879240960. Its totient is φ = 657074880.

The previous prime is 764304397. The next prime is 764304439. The reversal of 764304431 is 134403467.

It is a de Polignac number, because none of the positive numbers 2^k-764304431 is a prime.

It is a super-2 number, since 2×764304431² = 1168322526492467522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764304439) by changing a digit.

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, 125990 + ... + 131916.

It is an arithmetic number, because the mean of its divisors is an integer number (54952560).

Almost surely, 2^764304431 is an apocalyptic number.

764304431 is a deficient number, since it is larger than the sum of its proper divisors (114936529).

764304431 is a wasteful number, since it uses less digits than its factorization.

764304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 764304431 is about 27646.0563372066. The cubic root of 764304431 is about 914.3001530376.

Adding to 764304431 its reverse (134403467), we get a palindrome (898707898).

The spelling of 764304431 in words is "seven hundred sixty-four million, three hundred four thousand, four hundred thirty-one".