680775700 has 72 divisors (see below), whose sum is σ = 1696453920. Its totient is φ = 234518400.

The previous prime is 680775673. The next prime is 680775701. The reversal of 680775700 is 7577086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680775701) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4614 + ... + 37186.

It is an arithmetic number, because the mean of its divisors is an integer number (23561860).

Almost surely, 2^680775700 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 680775700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848226960).

680775700 is an abundant number, since it is smaller than the sum of its proper divisors (1015678220).

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

680775700 is a wasteful number, since it uses less digits than its factorization.

680775700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32617 (or 32610 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 680775700 is about 26091.6787501303. The cubic root of 680775700 is about 879.7001819538.

The spelling of 680775700 in words is "six hundred eighty million, seven hundred seventy-five thousand, seven hundred".