108911899 has 2 divisors, whose sum is σ = 108911900. Its totient is φ = 108911898.

The previous prime is 108911879. The next prime is 108911903. The reversal of 108911899 is 998119801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108911899 is a prime.

It is not a weakly prime, because it can be changed into another prime (108911879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54455949 + 54455950.

It is an arithmetic number, because the mean of its divisors is an integer number (54455950).

Almost surely, 2^108911899 is an apocalyptic number.

108911899 is a deficient number, since it is larger than the sum of its proper divisors (1).

108911899 is an equidigital number, since it uses as much as digits as its factorization.

108911899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 46.

The square root of 108911899 is about 10436.0863833144. The cubic root of 108911899 is about 477.5568843902.

The spelling of 108911899 in words is "one hundred eight million, nine hundred eleven thousand, eight hundred ninety-nine".