4399331 has 2 divisors, whose sum is σ = 4399332. Its totient is φ = 4399330.

The previous prime is 4399327. The next prime is 4399333. The reversal of 4399331 is 1339934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4399331 - 2² = 4399327 is a prime.

It is a super-2 number, since 2×4399331² = 38708226495122, which contains 22 as substring.

Together with 4399333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4399333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199665 + 2199666.

It is an arithmetic number, because the mean of its divisors is an integer number (2199666).

Almost surely, 2^4399331 is an apocalyptic number.

4399331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399331 is an equidigital number, since it uses as much as digits as its factorization.

4399331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 32.

The square root of 4399331 is about 2097.4582236602. The cubic root of 4399331 is about 163.8559487609.

It can be divided in two parts, 439933 and 1, that added together give a palindrome (439934).

The spelling of 4399331 in words is "four million, three hundred ninety-nine thousand, three hundred thirty-one".