686076 has 12 divisors (see below), whose sum is σ = 1600872. Its totient is φ = 228688.

The previous prime is 686057. The next prime is 686087. The reversal of 686076 is 670686.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28575 + ... + 28598.

It is an arithmetic number, because the mean of its divisors is an integer number (133406).

2⁶⁸⁶⁰⁷⁶ is an apocalyptic number.

It is an amenable number.

686076 is an abundant number, since it is smaller than the sum of its proper divisors (914796).

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

686076 is a wasteful number, since it uses less digits than its factorization.

686076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57180 (or 57178 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 686076 is about 828.2970481657. The cubic root of 686076 is about 88.1977303111.

The spelling of 686076 in words is "six hundred eighty-six thousand, seventy-six".