672556 has 12 divisors (see below), whose sum is σ = 1183168. Its totient is φ = 334512.

The previous prime is 672521. The next prime is 672557. The reversal of 672556 is 655276.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (672557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805 + ... + 1411.

2⁶⁷²⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

672556 is a deficient number, since it is larger than the sum of its proper divisors (510612).

672556 is a wasteful number, since it uses less digits than its factorization.

672556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 886 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 672556 is about 820.0951164347. The cubic root of 672556 is about 87.6145330100.

Subtracting from 672556 its product of digits (12600), we obtain a palindrome (659956).

The spelling of 672556 in words is "six hundred seventy-two thousand, five hundred fifty-six".