672831885 has 32 divisors (see below), whose sum is σ = 1177441920. Its totient is φ = 325376000.

The previous prime is 672831883. The next prime is 672831919. The reversal of 672831885 is 588138276.

It is not a de Polignac number, because 672831885 - 2¹ = 672831883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672831881) 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 31 ways as a sum of consecutive naturals, for example, 61081 + ... + 71249.

It is an arithmetic number, because the mean of its divisors is an integer number (36795060).

Almost surely, 2^672831885 is an apocalyptic number.

It is an amenable number.

672831885 is a deficient number, since it is larger than the sum of its proper divisors (504610035).

672831885 is a wasteful number, since it uses less digits than its factorization.

672831885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589.

The product of its digits is 645120, while the sum is 48.

The square root of 672831885 is about 25939.0031612628. The cubic root of 672831885 is about 876.2651130921.

The spelling of 672831885 in words is "six hundred seventy-two million, eight hundred thirty-one thousand, eight hundred eighty-five".