672856 has 16 divisors (see below), whose sum is σ = 1272240. Its totient is φ = 333600.

The previous prime is 672827. The next prime is 672863. The reversal of 672856 is 658276.

It is a d-powerful number, because it can be written as 6 + 7⁴ + 8⁶ + 2¹⁴ + 5⁸ + 6⁴ .

It is a congruent number.

It is an unprimeable number.

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, 930 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (79515).

2⁶⁷²⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

672856 is a deficient number, since it is larger than the sum of its proper divisors (599384).

672856 is a wasteful number, since it uses less digits than its factorization.

672856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 710 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 672856 is about 820.2780016555. The cubic root of 672856 is about 87.6275581720.

The spelling of 672856 in words is "six hundred seventy-two thousand, eight hundred fifty-six".