672685308 has 144 divisors (see below), whose sum is σ = 1883254464. Its totient is φ = 201553920.

The previous prime is 672685303. The next prime is 672685309. The reversal of 672685308 is 803586276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672685303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1381041 + ... + 1381527.

It is an arithmetic number, because the mean of its divisors is an integer number (13078156).

Almost surely, 2^672685308 is an apocalyptic number.

672685308 is a gapful number since it is divisible by the number (68) 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 672685308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941627232).

672685308 is an abundant number, since it is smaller than the sum of its proper divisors (1210569156).

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

672685308 is a wasteful number, since it uses less digits than its factorization.

672685308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 672685308 is about 25936.1775903852. The cubic root of 672685308 is about 876.2014767701.

The spelling of 672685308 in words is "six hundred seventy-two million, six hundred eighty-five thousand, three hundred eight".