686680088 has 48 divisors (see below), whose sum is σ = 1354075800. Its totient is φ = 326430720.

The previous prime is 686680081. The next prime is 686680103. The reversal of 686680088 is 880086686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686680081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892568 + ... + 893336.

Almost surely, 2^686680088 is an apocalyptic number.

It is an amenable number.

686680088 is a deficient number, since it is larger than the sum of its proper divisors (667395712).

686680088 is a wasteful number, since it uses less digits than its factorization.

686680088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The square root of 686680088 is about 26204.5814314978. The cubic root of 686680088 is about 882.2360866901.

The spelling of 686680088 in words is "six hundred eighty-six million, six hundred eighty thousand, eighty-eight".