4331 has 4 divisors (see below), whose sum is σ = 4464. Its totient is φ = 4200.

The previous prime is 4327. The next prime is 4337. The reversal of 4331 is 1334.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4331 - 2² = 4327 is a prime.

It is a super-2 number, since 2×4331² = 37515122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (4337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 96.

It is an arithmetic number, because the mean of its divisors is an integer number (1116).

2⁴³³¹ is an apocalyptic number.

4331 is a deficient number, since it is larger than the sum of its proper divisors (133).

4331 is an equidigital number, since it uses as much as digits as its factorization.

4331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132.

The product of its digits is 36, while the sum is 11.

The square root of 4331 is about 65.8103335351. The cubic root of 4331 is about 16.3003174063.

Adding to 4331 its reverse (1334), we get a palindrome (5665).

It can be divided in two parts, 433 and 1, that added together give a palindrome (434).

The spelling of 4331 in words is "four thousand, three hundred thirty-one".