686075 has 12 divisors (see below), whose sum is σ = 916608. Its totient is φ = 506400.

The previous prime is 686057. The next prime is 686087. The reversal of 686075 is 570686.

It is not a de Polignac number, because 686075 - 2⁶ = 686011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (76384).

2⁶⁸⁶⁰⁷⁵ is an apocalyptic number.

686075 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

686075 is a deficient number, since it is larger than the sum of its proper divisors (230533).

686075 is a wasteful number, since it uses less digits than its factorization.

686075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 686075 is about 828.2964445173. The cubic root of 686075 is about 88.1976874598.

The spelling of 686075 in words is "six hundred eighty-six thousand, seventy-five".