672513633 has 48 divisors (see below), whose sum is σ = 1081821312. Its totient is φ = 399168000.

The previous prime is 672513631. The next prime is 672513701. The reversal of 672513633 is 336315276.

672513633 is a `hidden beast` number, since 6 + 7 + 2 + 5 + 13 + 633 = 666.

It is not a de Polignac number, because 672513633 - 2¹ = 672513631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672513631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1693791 + ... + 1694187.

It is an arithmetic number, because the mean of its divisors is an integer number (22537944).

Almost surely, 2^672513633 is an apocalyptic number.

It is an amenable number.

672513633 is a deficient number, since it is larger than the sum of its proper divisors (409307679).

672513633 is a wasteful number, since it uses less digits than its factorization.

672513633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 723 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 672513633 is about 25932.8678128741. The cubic root of 672513633 is about 876.1269324104.

The spelling of 672513633 in words is "six hundred seventy-two million, five hundred thirteen thousand, six hundred thirty-three".