680979597 has 4 divisors (see below), whose sum is σ = 907972800. Its totient is φ = 453986396.

The previous prime is 680979583. The next prime is 680979623. The reversal of 680979597 is 795979086.

680979597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 680979597 - 2¹⁹ = 680455309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680979597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680979097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113496597 + ... + 113496602.

It is an arithmetic number, because the mean of its divisors is an integer number (226993200).

Almost surely, 2^680979597 is an apocalyptic number.

It is an amenable number.

680979597 is a deficient number, since it is larger than the sum of its proper divisors (226993203).

680979597 is a wasteful number, since it uses less digits than its factorization.

680979597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226993202.

The product of its (nonzero) digits is 8573040, while the sum is 60.

The square root of 680979597 is about 26095.5857761423. The cubic root of 680979597 is about 879.7879986036.

The spelling of 680979597 in words is "six hundred eighty million, nine hundred seventy-nine thousand, five hundred ninety-seven".