426686 has 8 divisors (see below), whose sum is σ = 689304. Its totient is φ = 196920.

The previous prime is 426661. The next prime is 426691. The reversal of 426686 is 686624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 8180 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (86163).

2⁴²⁶⁶⁸⁶ is an apocalyptic number.

426686 is a deficient number, since it is larger than the sum of its proper divisors (262618).

426686 is a wasteful number, since it uses less digits than its factorization.

426686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16426.

The product of its digits is 13824, while the sum is 32.

The square root of 426686 is about 653.2120635751. The cubic root of 426686 is about 75.2840193785.

The spelling of 426686 in words is "four hundred twenty-six thousand, six hundred eighty-six".