672431764 has 24 divisors (see below), whose sum is σ = 1205351840. Its totient is φ = 328061664.

The previous prime is 672431737. The next prime is 672431779. The reversal of 672431764 is 467134276.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 295222 + ... + 297490.

Almost surely, 2^672431764 is an apocalyptic number.

It is an amenable number.

672431764 is a deficient number, since it is larger than the sum of its proper divisors (532920076).

672431764 is a wasteful number, since it uses less digits than its factorization.

672431764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039 (or 4037 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 672431764 is about 25931.2892853402. The cubic root of 672431764 is about 876.0913789568.

The spelling of 672431764 in words is "six hundred seventy-two million, four hundred thirty-one thousand, seven hundred sixty-four".