426866 has 8 divisors (see below), whose sum is σ = 698544. Its totient is φ = 194020.

The previous prime is 426863. The next prime is 426871. The reversal of 426866 is 668624.

It is a happy number.

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

It is a super-3 number, since 3×426866³ = 233343629223689688, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (426863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9680 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (87318).

2⁴²⁶⁸⁶⁶ is an apocalyptic number.

426866 is a deficient number, since it is larger than the sum of its proper divisors (271678).

426866 is a wasteful number, since it uses less digits than its factorization.

426866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416.

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

The square root of 426866 is about 653.3498297237. The cubic root of 426866 is about 75.2946042258.

It can be divided in two parts, 4268 and 66, that added together give a palindrome (4334).

The spelling of 426866 in words is "four hundred twenty-six thousand, eight hundred sixty-six".