427731 has 8 divisors (see below), whose sum is σ = 595200. Its totient is φ = 272712.

The previous prime is 427727. The next prime is 427733. The reversal of 427731 is 137724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 427731 - 2² = 427727 is a prime.

It is a super-2 number, since 2×427731² = 365907616722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3031 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (74400).

2⁴²⁷⁷³¹ is an apocalyptic number.

427731 is a deficient number, since it is larger than the sum of its proper divisors (167469).

427731 is a wasteful number, since it uses less digits than its factorization.

427731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225.

The product of its digits is 1176, while the sum is 24.

The square root of 427731 is about 654.0114677894. The cubic root of 427731 is about 75.3454288320.

The spelling of 427731 in words is "four hundred twenty-seven thousand, seven hundred thirty-one".