680899211 has 4 divisors (see below), whose sum is σ = 683872800. Its totient is φ = 677925624.

The previous prime is 680899187. The next prime is 680899213. The reversal of 680899211 is 112998086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112998086 = 2 ⋅56499043.

It is a cyclic number.

It is not a de Polignac number, because 680899211 - 2²⁶ = 613790347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680899213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486451 + ... + 1486908.

It is an arithmetic number, because the mean of its divisors is an integer number (170968200).

Almost surely, 2^680899211 is an apocalyptic number.

680899211 is a deficient number, since it is larger than the sum of its proper divisors (2973589).

680899211 is a wasteful number, since it uses less digits than its factorization.

680899211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973588.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 680899211 is about 26094.0455085063. The cubic root of 680899211 is about 879.7533791517.

The spelling of 680899211 in words is "six hundred eighty million, eight hundred ninety-nine thousand, two hundred eleven".