680746913 has 8 divisors (see below), whose sum is σ = 848723520. Its totient is φ = 530452080.

The previous prime is 680746901. The next prime is 680746933. The reversal of 680746913 is 319647086.

680746913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680746913 - 2²² = 676552609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680746933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4420358 + ... + 4420511.

It is an arithmetic number, because the mean of its divisors is an integer number (106090440).

Almost surely, 2^680746913 is an apocalyptic number.

It is an amenable number.

680746913 is a deficient number, since it is larger than the sum of its proper divisors (167976607).

680746913 is a wasteful number, since it uses less digits than its factorization.

680746913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8840887.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 680746913 is about 26091.1270933243. The cubic root of 680746913 is about 879.6877822329.

The spelling of 680746913 in words is "six hundred eighty million, seven hundred forty-six thousand, nine hundred thirteen".