108939899 has 2 divisors, whose sum is σ = 108939900. Its totient is φ = 108939898.

The previous prime is 108939881. The next prime is 108939917. The reversal of 108939899 is 998939801.

It is a balanced prime because it is at equal distance from previous prime (108939881) and next prime (108939917).

It is a cyclic number.

It is not a de Polignac number, because 108939899 - 2²⁰ = 107891323 is a prime.

It is not a weakly prime, because it can be changed into another prime (108939869) 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, 54469949 + 54469950.

It is an arithmetic number, because the mean of its divisors is an integer number (54469950).

Almost surely, 2^108939899 is an apocalyptic number.

108939899 is a deficient number, since it is larger than the sum of its proper divisors (1).

108939899 is an equidigital number, since it uses as much as digits as its factorization.

108939899 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 108939899 is about 10437.4277961574. The cubic root of 108939899 is about 477.5978056827.

The spelling of 108939899 in words is "one hundred eight million, nine hundred thirty-nine thousand, eight hundred ninety-nine".