104409839 has 2 divisors, whose sum is σ = 104409840. Its totient is φ = 104409838.

The previous prime is 104409817. The next prime is 104409859. The reversal of 104409839 is 938904401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104409839 - 2²⁰ = 103361263 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104409859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52204919 + 52204920.

It is an arithmetic number, because the mean of its divisors is an integer number (52204920).

Almost surely, 2^104409839 is an apocalyptic number.

104409839 is a deficient number, since it is larger than the sum of its proper divisors (1).

104409839 is an equidigital number, since it uses as much as digits as its factorization.

104409839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 104409839 is about 10218.1132798575. The cubic root of 104409839 is about 470.8838641845.

The spelling of 104409839 in words is "one hundred four million, four hundred nine thousand, eight hundred thirty-nine".