104688909 has 24 divisors (see below), whose sum is σ = 167950080. Its totient is φ = 64421136.

The previous prime is 104688901. The next prime is 104688919. The reversal of 104688909 is 909886401.

It is not a de Polignac number, because 104688909 - 2³ = 104688901 is a prime.

It is a super-2 number, since 2×104688909² = 21919535335220562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104688901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6909 + ... + 16034.

It is an arithmetic number, because the mean of its divisors is an integer number (6997920).

Almost surely, 2^104688909 is an apocalyptic number.

It is an amenable number.

104688909 is a deficient number, since it is larger than the sum of its proper divisors (63261171).

104688909 is a wasteful number, since it uses less digits than its factorization.

104688909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22978 (or 22959 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 104688909 is about 10231.7598193077. The cubic root of 104688909 is about 471.3030221751.

The spelling of 104688909 in words is "one hundred four million, six hundred eighty-eight thousand, nine hundred nine".