108899939 has 2 divisors, whose sum is σ = 108899940. Its totient is φ = 108899938.

The previous prime is 108899911. The next prime is 108899957. The reversal of 108899939 is 939998801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108899939 - 2¹⁶ = 108834403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108899339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54449969 + 54449970.

It is an arithmetic number, because the mean of its divisors is an integer number (54449970).

Almost surely, 2^108899939 is an apocalyptic number.

108899939 is a deficient number, since it is larger than the sum of its proper divisors (1).

108899939 is an equidigital number, since it uses as much as digits as its factorization.

108899939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 56.

The square root of 108899939 is about 10435.5133558441. The cubic root of 108899939 is about 477.5394030147.

The spelling of 108899939 in words is "one hundred eight million, eight hundred ninety-nine thousand, nine hundred thirty-nine".