82444291 has 2 divisors, whose sum is σ = 82444292. Its totient is φ = 82444290.

The previous prime is 82444289. The next prime is 82444331. The reversal of 82444291 is 19244428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82444291 - 2¹ = 82444289 is a prime.

It is a super-2 number, since 2×82444291² = 13594122236985362, which contains 22 as substring.

Together with 82444289, it forms a pair of twin primes.

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, 41222145 + 41222146.

It is an arithmetic number, because the mean of its divisors is an integer number (41222146).

Almost surely, 2^82444291 is an apocalyptic number.

82444291 is a deficient number, since it is larger than the sum of its proper divisors (1).

82444291 is an equidigital number, since it uses as much as digits as its factorization.

82444291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 82444291 is about 9079.8838648961. The cubic root of 82444291 is about 435.2313755668.

The spelling of 82444291 in words is "eighty-two million, four hundred forty-four thousand, two hundred ninety-one".