680598899 has 8 divisors (see below), whose sum is σ = 694872192. Its totient is φ = 666426240.

The previous prime is 680598889. The next prime is 680598901. The reversal of 680598899 is 998895086.

It is a happy number.

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 680598899 - 2⁸ = 680598643 is a prime.

It is a super-2 number, since 2×680598899² = 926429722640024402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680598889) 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, 11414 + ... + 38619.

It is an arithmetic number, because the mean of its divisors is an integer number (86859024).

Almost surely, 2^680598899 is an apocalyptic number.

680598899 is a deficient number, since it is larger than the sum of its proper divisors (14273293).

680598899 is a wasteful number, since it uses less digits than its factorization.

680598899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50317.

The product of its (nonzero) digits is 11197440, while the sum is 62.

The square root of 680598899 is about 26088.2904575980. The cubic root of 680598899 is about 879.6240211185.

The spelling of 680598899 in words is "six hundred eighty million, five hundred ninety-eight thousand, eight hundred ninety-nine".