672670680 has 128 divisors (see below), whose sum is σ = 2317420800. Its totient is φ = 154483200.

The previous prime is 672670679. The next prime is 672670703. The reversal of 672670680 is 86076276.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11670 + ... + 38490.

It is an arithmetic number, because the mean of its divisors is an integer number (18104850).

Almost surely, 2^672670680 is an apocalyptic number.

672670680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672670680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158710400).

672670680 is an abundant number, since it is smaller than the sum of its proper divisors (1644750120).

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

672670680 is a wasteful number, since it uses less digits than its factorization.

672670680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26865 (or 26861 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 672670680 is about 25935.8955889323. The cubic root of 672670680 is about 876.1951255248.

The spelling of 672670680 in words is "six hundred seventy-two million, six hundred seventy thousand, six hundred eighty".