426783555 has 96 divisors (see below), whose sum is σ = 876028608. Its totient is φ = 189849600.

The previous prime is 426783523. The next prime is 426783587. The reversal of 426783555 is 555387624.

426783555 is a `hidden beast` number, since 4 + 26 + 78 + 3 + 555 = 666.

It is an interprime number because it is at equal distance from previous prime (426783523) and next prime (426783587).

It is not a de Polignac number, because 426783555 - 2⁵ = 426783523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 426783555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 344397 + ... + 345633.

It is an arithmetic number, because the mean of its divisors is an integer number (9125298).

Almost surely, 2^426783555 is an apocalyptic number.

426783555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

426783555 is an abundant number, since it is smaller than the sum of its proper divisors (449245053).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426783555 is a wasteful number, since it uses less digits than its factorization.

426783555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1314 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 426783555 is about 20658.7404020671. The cubic root of 426783555 is about 752.8975644110.

The spelling of 426783555 in words is "four hundred twenty-six million, seven hundred eighty-three thousand, five hundred fifty-five".