686270 has 16 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 253344.

The previous prime is 686269. The next prime is 686293. The reversal of 686270 is 72686.

686270 is nontrivially palindromic in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 686270.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2510 + ... + 2769.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁶⁸⁶²⁷⁰ is an apocalyptic number.

686270 is a deficient number, since it is larger than the sum of its proper divisors (644290).

686270 is a wasteful number, since it uses less digits than its factorization.

686270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 686270 is about 828.4141476339. The cubic root of 686270 is about 88.2060426785.

The spelling of 686270 in words is "six hundred eighty-six thousand, two hundred seventy".