108790409 has 16 divisors (see below), whose sum is σ = 140945280. Its totient is φ = 81544320.

The previous prime is 108790403. The next prime is 108790457. The reversal of 108790409 is 904097801.

It is not a de Polignac number, because 108790409 - 2⁸ = 108790153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108790403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29732 + ... + 33189.

It is an arithmetic number, because the mean of its divisors is an integer number (8809080).

Almost surely, 2^108790409 is an apocalyptic number.

108790409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

108790409 is a deficient number, since it is larger than the sum of its proper divisors (32154871).

108790409 is a wasteful number, since it uses less digits than its factorization.

108790409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62960.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 108790409 is about 10430.2640906163. The cubic root of 108790409 is about 477.3792485434.

The spelling of 108790409 in words is "one hundred eight million, seven hundred ninety thousand, four hundred nine".