104256839 has 4 divisors (see below), whose sum is σ = 104293680. Its totient is φ = 104220000.

The previous prime is 104256833. The next prime is 104256899. The reversal of 104256839 is 938652401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104256839 - 2¹⁶ = 104191303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104256833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13787 + ... + 19964.

It is an arithmetic number, because the mean of its divisors is an integer number (26073420).

Almost surely, 2^104256839 is an apocalyptic number.

104256839 is a deficient number, since it is larger than the sum of its proper divisors (36841).

104256839 is an equidigital number, since it uses as much as digits as its factorization.

104256839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36840.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 104256839 is about 10210.6238301095. The cubic root of 104256839 is about 470.6537439463.

The spelling of 104256839 in words is "one hundred four million, two hundred fifty-six thousand, eight hundred thirty-nine".