680703624 has 24 divisors (see below), whose sum is σ = 1843572510. Its totient is φ = 226901184.

The previous prime is 680703623. The next prime is 680703637. The reversal of 680703624 is 426307086.

It can be written as a sum of positive squares in only one way, i.e., 635947524 + 44756100 = 25218^2 + 6690^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (680703623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4727037 + ... + 4727180.

Almost surely, 2^680703624 is an apocalyptic number.

It is an amenable number.

680703624 is an abundant number, since it is smaller than the sum of its proper divisors (1162868886).

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

680703624 is a wasteful number, since it uses less digits than its factorization.

680703624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9454229 (or 9454222 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 680703624 is about 26090.2975069277. The cubic root of 680703624 is about 879.6691352581.

The spelling of 680703624 in words is "six hundred eighty million, seven hundred three thousand, six hundred twenty-four".