427830975 has 72 divisors (see below), whose sum is σ = 900327792. Its totient is φ = 191462400.

The previous prime is 427830937. The next prime is 427831009. The reversal of 427830975 is 579038724.

427830975 is a `hidden beast` number, since 4 + 278 + 309 + 75 = 666.

It is not a de Polignac number, because 427830975 - 2⁶ = 427830911 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 427830975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 25527 + ... + 38823.

Almost surely, 2^427830975 is an apocalyptic number.

427830975 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

427830975 is an abundant number, since it is smaller than the sum of its proper divisors (472496817).

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

427830975 is a wasteful number, since it uses less digits than its factorization.

427830975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337 (or 13329 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 427830975 is about 20684.0753963043. The cubic root of 427830975 is about 753.5129862126.

It can be divided in two parts, 4278 and 30975, that added together give a palindrome (35253).

The spelling of 427830975 in words is "four hundred twenty-seven million, eight hundred thirty thousand, nine hundred seventy-five".