427575231 has 12 divisors (see below), whose sum is σ = 619908120. Its totient is φ = 283988880.

The previous prime is 427575227. The next prime is 427575251. The reversal of 427575231 is 132575724.

It is not a de Polignac number, because 427575231 - 2² = 427575227 is a prime.

It is a super-2 number, since 2×427575231² = 365641156329406722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427575251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85885 + ... + 90726.

It is an arithmetic number, because the mean of its divisors is an integer number (51659010).

Almost surely, 2^427575231 is an apocalyptic number.

427575231 is a deficient number, since it is larger than the sum of its proper divisors (192332889).

427575231 is a wasteful number, since it uses less digits than its factorization.

427575231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176886 (or 176883 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 427575231 is about 20677.8923248962. The cubic root of 427575231 is about 753.3628141063.

The spelling of 427575231 in words is "four hundred twenty-seven million, five hundred seventy-five thousand, two hundred thirty-one".