108919399 has 8 divisors (see below), whose sum is σ = 114556032. Its totient is φ = 103415520.

The previous prime is 108919397. The next prime is 108919417. The reversal of 108919399 is 993919801.

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

It is a cyclic number.

It is not a de Polignac number, because 108919399 - 2¹ = 108919397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108919397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31504 + ... + 34789.

It is an arithmetic number, because the mean of its divisors is an integer number (14319504).

Almost surely, 2^108919399 is an apocalyptic number.

108919399 is a deficient number, since it is larger than the sum of its proper divisors (5636633).

108919399 is an equidigital number, since it uses as much as digits as its factorization.

108919399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66377.

The product of its (nonzero) digits is 157464, while the sum is 49.

The square root of 108919399 is about 10436.4457072319. The cubic root of 108919399 is about 477.5678461384.

The spelling of 108919399 in words is "one hundred eight million, nine hundred nineteen thousand, three hundred ninety-nine".