426578959 has 4 divisors (see below), whose sum is σ = 426649320. Its totient is φ = 426508600.

The previous prime is 426578947. The next prime is 426578983. The reversal of 426578959 is 959875624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426578959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426578359) 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, 25129 + ... + 38530.

It is an arithmetic number, because the mean of its divisors is an integer number (106662330).

Almost surely, 2^426578959 is an apocalyptic number.

426578959 is a deficient number, since it is larger than the sum of its proper divisors (70361).

426578959 is an equidigital number, since it uses as much as digits as its factorization.

426578959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70360.

The product of its digits is 5443200, while the sum is 55.

The square root of 426578959 is about 20653.7880060777. The cubic root of 426578959 is about 752.7772345233. Note that the first 3 decimals are identical.

The spelling of 426578959 in words is "four hundred twenty-six million, five hundred seventy-eight thousand, nine hundred fifty-nine".