82444331 has 2 divisors, whose sum is σ = 82444332. Its totient is φ = 82444330.

The previous prime is 82444291. The next prime is 82444343. The reversal of 82444331 is 13344428.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82444331 - 2¹⁸ = 82182187 is a prime.

It is a super-2 number, since 2×82444331² = 13594135428075122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 82444294 and 82444303.

It is not a weakly prime, because it can be changed into another prime (82444391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41222165 + 41222166.

It is an arithmetic number, because the mean of its divisors is an integer number (41222166).

Almost surely, 2^82444331 is an apocalyptic number.

82444331 is a deficient number, since it is larger than the sum of its proper divisors (1).

82444331 is an equidigital number, since it uses as much as digits as its factorization.

82444331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 29.

The square root of 82444331 is about 9079.8860675671. The cubic root of 82444331 is about 435.2314459548.

Adding to 82444331 its reverse (13344428), we get a palindrome (95788759).

The spelling of 82444331 in words is "eighty-two million, four hundred forty-four thousand, three hundred thirty-one".