913686 has 16 divisors (see below), whose sum is σ = 1839024. Its totient is φ = 302624.

The previous prime is 913639. The next prime is 913687. The reversal of 913686 is 686319.

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 913686.

It is not an unprimeable number, because it can be changed into a prime (913687) by changing a digit.

913686 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (114939).

2⁹¹³⁶⁸⁶ is an apocalyptic number.

913686 is an abundant number, since it is smaller than the sum of its proper divisors (925338).

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

913686 is a wasteful number, since it uses less digits than its factorization.

913686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

The product of its digits is 7776, while the sum is 33.

The square root of 913686 is about 955.8692379191. The cubic root of 913686 is about 97.0358743560.

It can be divided in two parts, 9 and 13686, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 913686 in words is "nine hundred thirteen thousand, six hundred eighty-six".