672872 has 16 divisors (see below), whose sum is σ = 1270500. Its totient is φ = 334080.

The previous prime is 672871. The next prime is 672883. The reversal of 672872 is 278276.

It can be written as a sum of positive squares in 2 ways, for example, as 630436 + 42436 = 794^2 + 206^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 672872.

It is not an unprimeable number, because it can be changed into a prime (672871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754 + ... + 2102.

2⁶⁷²⁸⁷² is an apocalyptic number.

It is an amenable number.

672872 is a deficient number, since it is larger than the sum of its proper divisors (597628).

672872 is a wasteful number, since it uses less digits than its factorization.

672872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 592 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 672872 is about 820.2877543887. The cubic root of 672872 is about 87.6282527386.

It can be divided in two parts, 6728 and 72, that multiplied together give a square (484416 = 696²).

The spelling of 672872 in words is "six hundred seventy-two thousand, eight hundred seventy-two".