13288899 has 16 divisors (see below), whose sum is σ = 19238912. Its totient is φ = 8110368.

The previous prime is 13288889. The next prime is 13288909. The reversal of 13288899 is 99888231.

It is a happy number.

13288899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13288889) and next prime (13288909).

It is not a de Polignac number, because 13288899 - 2⁵ = 13288867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13288829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3612 + ... + 6294.

It is an arithmetic number, because the mean of its divisors is an integer number (1202432).

Almost surely, 2^13288899 is an apocalyptic number.

13288899 is a deficient number, since it is larger than the sum of its proper divisors (5950013).

13288899 is a wasteful number, since it uses less digits than its factorization.

13288899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826.

The product of its digits is 248832, while the sum is 48.

The square root of 13288899 is about 3645.3942173652. The cubic root of 13288899 is about 236.8625135033.

The spelling of 13288899 in words is "thirteen million, two hundred eighty-eight thousand, eight hundred ninety-nine".