82798439 has 2 divisors, whose sum is σ = 82798440. Its totient is φ = 82798438.

The previous prime is 82798423. The next prime is 82798453. The reversal of 82798439 is 93489728.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82798439 - 2⁴ = 82798423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82798139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41399219 + 41399220.

It is an arithmetic number, because the mean of its divisors is an integer number (41399220).

Almost surely, 2^82798439 is an apocalyptic number.

82798439 is a deficient number, since it is larger than the sum of its proper divisors (1).

82798439 is an equidigital number, since it uses as much as digits as its factorization.

82798439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 82798439 is about 9099.3647580477. The cubic root of 82798439 is about 435.8536791922.

The spelling of 82798439 in words is "eighty-two million, seven hundred ninety-eight thousand, four hundred thirty-nine".