680764898 has 64 divisors (see below), whose sum is σ = 1236197376. Its totient is φ = 277536000.

The previous prime is 680764897. The next prime is 680764939. The reversal of 680764898 is 898467086.

It is not an unprimeable number, because it can be changed into a prime (680764897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822761 + ... + 823587.

It is an arithmetic number, because the mean of its divisors is an integer number (19315584).

Almost surely, 2^680764898 is an apocalyptic number.

680764898 is a deficient number, since it is larger than the sum of its proper divisors (555432478).

680764898 is a wasteful number, since it uses less digits than its factorization.

680764898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The square root of 680764898 is about 26091.4717484468. The cubic root of 680764898 is about 879.6955291381.

The spelling of 680764898 in words is "six hundred eighty million, seven hundred sixty-four thousand, eight hundred ninety-eight".