104138889 has 32 divisors (see below), whose sum is σ = 152985600. Its totient is φ = 62726400.

The previous prime is 104138869. The next prime is 104138891. The reversal of 104138889 is 988831401.

It is not a de Polignac number, because 104138889 - 2⁷ = 104138761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104138889.

It is not an unprimeable number, because it can be changed into a prime (104138809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314454 + ... + 314784.

It is an arithmetic number, because the mean of its divisors is an integer number (4780800).

Almost surely, 2^104138889 is an apocalyptic number.

It is an amenable number.

104138889 is a deficient number, since it is larger than the sum of its proper divisors (48846711).

104138889 is a wasteful number, since it uses less digits than its factorization.

104138889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 104138889 is about 10204.8463486718. The cubic root of 104138889 is about 470.4761870661.

The spelling of 104138889 in words is "one hundred four million, one hundred thirty-eight thousand, eight hundred eighty-nine".