686808060 has 96 divisors (see below), whose sum is σ = 2061061632. Its totient is φ = 170438400.

The previous prime is 686808049. The next prime is 686808071. The reversal of 686808060 is 60808686.

It is an interprime number because it is at equal distance from previous prime (686808049) and next prime (686808071).

It is a super-2 number, since 2×686808060² = 943410622561927200, which contains 22 as substring.

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, 44335 + ... + 57785.

It is an arithmetic number, because the mean of its divisors is an integer number (21469392).

Almost surely, 2^686808060 is an apocalyptic number.

686808060 is a gapful number since it is divisible by the number (60) 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 686808060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030530816).

686808060 is an abundant number, since it is smaller than the sum of its proper divisors (1374253572).

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

686808060 is a wasteful number, since it uses less digits than its factorization.

686808060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13523 (or 13521 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 686808060 is about 26207.0231045039. The cubic root of 686808060 is about 882.2908887761.

The spelling of 686808060 in words is "six hundred eighty-six million, eight hundred eight thousand, sixty".