426817 has 4 divisors (see below), whose sum is σ = 433876. Its totient is φ = 419760.

The previous prime is 426799. The next prime is 426841. The reversal of 426817 is 718624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62001 + 364816 = 249^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 426817 - 2¹¹ = 424769 is a prime.

It is a Duffinian number.

426817 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (426917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3438 + ... + 3559.

It is an arithmetic number, because the mean of its divisors is an integer number (108469).

2⁴²⁶⁸¹⁷ is an apocalyptic number.

It is an amenable number.

426817 is a deficient number, since it is larger than the sum of its proper divisors (7059).

426817 is an equidigital number, since it uses as much as digits as its factorization.

426817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7058.

The product of its digits is 2688, while the sum is 28.

The square root of 426817 is about 653.3123295944. The cubic root of 426817 is about 75.2917230899.

It can be divided in two parts, 42 and 6817, that added together give a cube (6859 = 19³).

The spelling of 426817 in words is "four hundred twenty-six thousand, eight hundred seventeen".