680790312 has 128 divisors (see below), whose sum is σ = 1968624000. Its totient is φ = 217728000.

The previous prime is 680790307. The next prime is 680790359. The reversal of 680790312 is 213097086.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1572048 + ... + 1572480.

It is an arithmetic number, because the mean of its divisors is an integer number (15379875).

Almost surely, 2^680790312 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 680790312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984312000).

680790312 is an abundant number, since it is smaller than the sum of its proper divisors (1287833688).

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

680790312 is a wasteful number, since it uses less digits than its factorization.

680790312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 680790312 is about 26091.9587612736. The cubic root of 680790312 is about 879.7064757973.

The spelling of 680790312 in words is "six hundred eighty million, seven hundred ninety thousand, three hundred twelve".