104499839 has 2 divisors, whose sum is σ = 104499840. Its totient is φ = 104499838.

The previous prime is 104499823. The next prime is 104499841. The reversal of 104499839 is 938994401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104499839 - 2⁴ = 104499823 is a prime.

Together with 104499841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 104499793 and 104499802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104499139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52249919 + 52249920.

It is an arithmetic number, because the mean of its divisors is an integer number (52249920).

Almost surely, 2^104499839 is an apocalyptic number.

104499839 is a deficient number, since it is larger than the sum of its proper divisors (1).

104499839 is an equidigital number, since it uses as much as digits as its factorization.

104499839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 104499839 is about 10222.5162753600. The cubic root of 104499839 is about 471.0191240321.

The spelling of 104499839 in words is "one hundred four million, four hundred ninety-nine thousand, eight hundred thirty-nine".