680603651 has 8 divisors (see below), whose sum is σ = 837666144. Its totient is φ = 538499520.

The previous prime is 680603647. The next prime is 680603719. The reversal of 680603651 is 156306086.

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

It is not a de Polignac number, because 680603651 - 2² = 680603647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680603611) 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, 3739490 + ... + 3739671.

It is an arithmetic number, because the mean of its divisors is an integer number (104708268).

Almost surely, 2^680603651 is an apocalyptic number.

680603651 is a deficient number, since it is larger than the sum of its proper divisors (157062493).

680603651 is a wasteful number, since it uses less digits than its factorization.

680603651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7479181.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 680603651 is about 26088.3815327820. The cubic root of 680603651 is about 879.6260683172.

The spelling of 680603651 in words is "six hundred eighty million, six hundred three thousand, six hundred fifty-one".