680809116 has 24 divisors (see below), whose sum is σ = 1710751504. Its totient is φ = 209479680.

The previous prime is 680809111. The next prime is 680809127. The reversal of 680809116 is 611908086.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680809111) 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, 2181925 + ... + 2182236.

Almost surely, 2^680809116 is an apocalyptic number.

It is an amenable number.

680809116 is an abundant number, since it is smaller than the sum of its proper divisors (1029942388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680809116 is a wasteful number, since it uses less digits than its factorization.

680809116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364181 (or 4364179 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 680809116 is about 26092.3190996891. The cubic root of 680809116 is about 879.7145751332.

The spelling of 680809116 in words is "six hundred eighty million, eight hundred nine thousand, one hundred sixteen".