13089899 has 4 divisors (see below), whose sum is σ = 13097136. Its totient is φ = 13082664.

The previous prime is 13089893. The next prime is 13089911. The reversal of 13089899 is 99898031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13089899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13089893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1802 + ... + 5424.

It is an arithmetic number, because the mean of its divisors is an integer number (3274284).

Almost surely, 2^13089899 is an apocalyptic number.

13089899 is a deficient number, since it is larger than the sum of its proper divisors (7237).

13089899 is an equidigital number, since it uses as much as digits as its factorization.

13089899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 13089899 is about 3617.9965450509. The cubic root of 13089899 is about 235.6742309306.

The spelling of 13089899 in words is "thirteen million, eighty-nine thousand, eight hundred ninety-nine".