426865 has 8 divisors (see below), whose sum is σ = 521280. Its totient is φ = 335472.

The previous prime is 426863. The next prime is 426871. The reversal of 426865 is 568624.

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

It is a cyclic number.

It is not a de Polignac number, because 426865 - 2¹ = 426863 is a prime.

It is a super-3 number, since 3×426865³ = 233341989296293875, which contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 429 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (65160).

2⁴²⁶⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

426865 is a deficient number, since it is larger than the sum of its proper divisors (94415).

426865 is a wasteful number, since it uses less digits than its factorization.

426865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its digits is 11520, while the sum is 31.

The square root of 426865 is about 653.3490644365. The cubic root of 426865 is about 75.2945454293.

The spelling of 426865 in words is "four hundred twenty-six thousand, eight hundred sixty-five".