672812 has 12 divisors (see below), whose sum is σ = 1345680. Its totient is φ = 288336.

The previous prime is 672811. The next prime is 672817. The reversal of 672812 is 218276.

672812 = T₃₀₃ + T₃₀₄ + ... + T₃₁₆.

672812 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (672811) 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, 11987 + ... + 12042.

It is an arithmetic number, because the mean of its divisors is an integer number (112140).

2⁶⁷²⁸¹² is an apocalyptic number.

It is an amenable number.

672812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

672812 is a wasteful number, since it uses less digits than its factorization.

672812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24040 (or 24038 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 672812 is about 820.2511810415. The cubic root of 672812 is about 87.6256480572.

The spelling of 672812 in words is "six hundred seventy-two thousand, eight hundred twelve".