686956116 has 96 divisors (see below), whose sum is σ = 2032450560. Its totient is φ = 175392000.

The previous prime is 686956103. The next prime is 686956129. The reversal of 686956116 is 611659686.

It is an interprime number because it is at equal distance from previous prime (686956103) and next prime (686956129).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48216 + ... + 60816.

It is an arithmetic number, because the mean of its divisors is an integer number (21171360).

Almost surely, 2^686956116 is an apocalyptic number.

686956116 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686956116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016225280).

686956116 is an abundant number, since it is smaller than the sum of its proper divisors (1345494444).

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

686956116 is a wasteful number, since it uses less digits than its factorization.

686956116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12685 (or 12683 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 686956116 is about 26209.8476912782. The cubic root of 686956116 is about 882.3542830401.

The spelling of 686956116 in words is "six hundred eighty-six million, nine hundred fifty-six thousand, one hundred sixteen".