427875231 has 32 divisors (see below), whose sum is σ = 687677440. Its totient is φ = 231172704.

The previous prime is 427875197. The next prime is 427875271. The reversal of 427875231 is 132578724.

It is not a de Polignac number, because 427875231 - 2⁹ = 427874719 is a prime.

It is a super-2 number, since 2×427875231² = 366154426606606722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427875231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427875271) 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, 327726 + ... + 329028.

It is an arithmetic number, because the mean of its divisors is an integer number (21489920).

Almost surely, 2^427875231 is an apocalyptic number.

427875231 is a deficient number, since it is larger than the sum of its proper divisors (259802209).

427875231 is a wasteful number, since it uses less digits than its factorization.

427875231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155.

The product of its digits is 94080, while the sum is 39.

The square root of 427875231 is about 20685.1451771555. The cubic root of 427875231 is about 753.5389671278.

The spelling of 427875231 in words is "four hundred twenty-seven million, eight hundred seventy-five thousand, two hundred thirty-one".