108989889 has 8 divisors (see below), whose sum is σ = 148061952. Its totient is φ = 71288880.

The previous prime is 108989869. The next prime is 108989891. The reversal of 108989889 is 988989801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108989889 - 2⁵ = 108989857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108989819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342577 + ... + 342894.

It is an arithmetic number, because the mean of its divisors is an integer number (18507744).

Almost surely, 2^108989889 is an apocalyptic number.

It is an amenable number.

108989889 is a deficient number, since it is larger than the sum of its proper divisors (39072063).

108989889 is an equidigital number, since it uses as much as digits as its factorization.

108989889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685527.

The product of its (nonzero) digits is 2985984, while the sum is 60.

The square root of 108989889 is about 10439.8222686021. The cubic root of 108989889 is about 477.6708473737.

The spelling of 108989889 in words is "one hundred eight million, nine hundred eighty-nine thousand, eight hundred eighty-nine".