89109399 has 4 divisors (see below), whose sum is σ = 118812536. Its totient is φ = 59406264.

The previous prime is 89109389. The next prime is 89109401. The reversal of 89109399 is 99390198.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89109399 - 2⁸ = 89109143 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 (89109379) 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 in 3 ways as a sum of consecutive naturals, for example, 14851564 + ... + 14851569.

It is an arithmetic number, because the mean of its divisors is an integer number (29703134).

Almost surely, 2^89109399 is an apocalyptic number.

89109399 is a deficient number, since it is larger than the sum of its proper divisors (29703137).

89109399 is a wasteful number, since it uses less digits than its factorization.

89109399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29703136.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 89109399 is about 9439.7774867843. Note that the first 3 decimals coincide. The cubic root of 89109399 is about 446.6573704780.

The spelling of 89109399 in words is "eighty-nine million, one hundred nine thousand, three hundred ninety-nine".