680862698 has 32 divisors (see below), whose sum is σ = 1092185856. Its totient is φ = 317611008.

The previous prime is 680862673. The next prime is 680862781. The reversal of 680862698 is 896268086.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469811 + ... + 471257.

It is an arithmetic number, because the mean of its divisors is an integer number (34130808).

Almost surely, 2^680862698 is an apocalyptic number.

680862698 is a deficient number, since it is larger than the sum of its proper divisors (411323158).

680862698 is a wasteful number, since it uses less digits than its factorization.

680862698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 680862698 is about 26093.3458567505. The cubic root of 680862698 is about 879.7376533738.

The spelling of 680862698 in words is "six hundred eighty million, eight hundred sixty-two thousand, six hundred ninety-eight".