104678839 has 2 divisors, whose sum is σ = 104678840. Its totient is φ = 104678838.

The previous prime is 104678831. The next prime is 104678881. The reversal of 104678839 is 938876401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104678839 - 2³ = 104678831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104678831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52339419 + 52339420.

It is an arithmetic number, because the mean of its divisors is an integer number (52339420).

Almost surely, 2^104678839 is an apocalyptic number.

104678839 is a deficient number, since it is larger than the sum of its proper divisors (1).

104678839 is an equidigital number, since it uses as much as digits as its factorization.

104678839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 104678839 is about 10231.2677122632. The cubic root of 104678839 is about 471.2879101839.

It can be divided in two parts, 10467 and 8839, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 104678839 in words is "one hundred four million, six hundred seventy-eight thousand, eight hundred thirty-nine".