80944439 has 2 divisors, whose sum is σ = 80944440. Its totient is φ = 80944438.

The previous prime is 80944421. The next prime is 80944459. The reversal of 80944439 is 93444908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80944439 - 2⁸ = 80944183 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80944396 and 80944405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80944459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40472219 + 40472220.

It is an arithmetic number, because the mean of its divisors is an integer number (40472220).

Almost surely, 2^80944439 is an apocalyptic number.

80944439 is a deficient number, since it is larger than the sum of its proper divisors (1).

80944439 is an equidigital number, since it uses as much as digits as its factorization.

80944439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 80944439 is about 8996.9127482709. The cubic root of 80944439 is about 432.5759190460.

The spelling of 80944439 in words is "eighty million, nine hundred forty-four thousand, four hundred thirty-nine".