427431 has 16 divisors (see below), whose sum is σ = 626400. Its totient is φ = 258944.

The previous prime is 427429. The next prime is 427433. The reversal of 427431 is 134724.

It is an interprime number because it is at equal distance from previous prime (427429) and next prime (427433).

It is not a de Polignac number, because 427431 - 2¹ = 427429 is a prime.

It is a super-2 number, since 2×427431² = 365394519522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 427398 and 427407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14725 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (39150).

2⁴²⁷⁴³¹ is an apocalyptic number.

427431 is a deficient number, since it is larger than the sum of its proper divisors (198969).

427431 is an equidigital number, since it uses as much as digits as its factorization.

427431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 49 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 427431 is about 653.7820737830. The cubic root of 427431 is about 75.3278095688.

It can be divided in two parts, 427 and 431, that added together give a palindrome (858).

The spelling of 427431 in words is "four hundred twenty-seven thousand, four hundred thirty-one".