680757544 has 16 divisors (see below), whose sum is σ = 1278367200. Its totient is φ = 339859632.

The previous prime is 680757533. The next prime is 680757547. The reversal of 680757544 is 445757086.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 680757494 and 680757503.

It is not an unprimeable number, because it can be changed into a prime (680757547) 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 3 ways as a sum of consecutive naturals, for example, 59292 + ... + 69835.

It is an arithmetic number, because the mean of its divisors is an integer number (79897950).

Almost surely, 2^680757544 is an apocalyptic number.

It is an amenable number.

680757544 is a deficient number, since it is larger than the sum of its proper divisors (597609656).

680757544 is a wasteful number, since it uses less digits than its factorization.

680757544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129792 (or 129788 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The square root of 680757544 is about 26091.3308207918. The cubic root of 680757544 is about 879.6923614737.

The spelling of 680757544 in words is "six hundred eighty million, seven hundred fifty-seven thousand, five hundred forty-four".