672680 has 32 divisors (see below), whose sum is σ = 1542240. Its totient is φ = 264000.

The previous prime is 672667. The next prime is 672703. The reversal of 672680 is 86276.

It is a congruent number.

It is an unprimeable number.

672680 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2555 + ... + 2805.

It is an arithmetic number, because the mean of its divisors is an integer number (48195).

2⁶⁷²⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771120).

672680 is an abundant number, since it is smaller than the sum of its proper divisors (869560).

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

672680 is a wasteful number, since it uses less digits than its factorization.

672680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 672680 is about 820.1707139370. The cubic root of 672680 is about 87.6199172131.

The spelling of 672680 in words is "six hundred seventy-two thousand, six hundred eighty".