672889530 has 32 divisors (see below), whose sum is σ = 1615723200. Its totient is φ = 179349632.

The previous prime is 672889501. The next prime is 672889577. The reversal of 672889530 is 35988276.

It is a self number, because there is not a number n which added to its sum of digits gives 672889530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77761 + ... + 85979.

It is an arithmetic number, because the mean of its divisors is an integer number (50491350).

Almost surely, 2^672889530 is an apocalyptic number.

672889530 is an abundant number, since it is smaller than the sum of its proper divisors (942833670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672889530 is a wasteful number, since it uses less digits than its factorization.

672889530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10958.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 672889530 is about 25940.1143019841. The cubic root of 672889530 is about 876.2901371043.

The spelling of 672889530 in words is "six hundred seventy-two million, eight hundred eighty-nine thousand, five hundred thirty".