108349989 has 16 divisors (see below), whose sum is σ = 165895680. Its totient is φ = 62210160.

The previous prime is 108349979. The next prime is 108350009. The reversal of 108349989 is 989943801.

It is a happy number.

108349989 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 108349989 - 2⁵ = 108349957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108349909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85777 + ... + 87030.

It is an arithmetic number, because the mean of its divisors is an integer number (10368480).

Almost surely, 2^108349989 is an apocalyptic number.

108349989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

108349989 is a deficient number, since it is larger than the sum of its proper divisors (57545691).

108349989 is a wasteful number, since it uses less digits than its factorization.

108349989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172840.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 108349989 is about 10409.1300789259. The cubic root of 108349989 is about 476.7341802644.

The spelling of 108349989 in words is "one hundred eight million, three hundred forty-nine thousand, nine hundred eighty-nine".