108927409 has 4 divisors (see below), whose sum is σ = 108956016. Its totient is φ = 108898804.

The previous prime is 108927373. The next prime is 108927431. The reversal of 108927409 is 904729801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108927409 - 2¹¹ = 108925361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108927479) 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, 7519 + ... + 16564.

It is an arithmetic number, because the mean of its divisors is an integer number (27239004).

Almost surely, 2^108927409 is an apocalyptic number.

It is an amenable number.

108927409 is a deficient number, since it is larger than the sum of its proper divisors (28607).

108927409 is an equidigital number, since it uses as much as digits as its factorization.

108927409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28606.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 108927409 is about 10436.8294515145. The cubic root of 108927409 is about 477.5795527297.

The spelling of 108927409 in words is "one hundred eight million, nine hundred twenty-seven thousand, four hundred nine".