426983557 has 32 divisors (see below), whose sum is σ = 576737280. Its totient is φ = 305277120.

The previous prime is 426983551. The next prime is 426983573. The reversal of 426983557 is 755389624.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426983557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426983557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426983551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177988 + ... + 180370.

It is an arithmetic number, because the mean of its divisors is an integer number (18023040).

Almost surely, 2^426983557 is an apocalyptic number.

It is an amenable number.

426983557 is a deficient number, since it is larger than the sum of its proper divisors (149753723).

426983557 is a wasteful number, since it uses less digits than its factorization.

426983557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593.

The product of its digits is 1814400, while the sum is 49.

The square root of 426983557 is about 20663.5804496704. The cubic root of 426983557 is about 753.0151552451.

The spelling of 426983557 in words is "four hundred twenty-six million, nine hundred eighty-three thousand, five hundred fifty-seven".