13078899 has 24 divisors (see below), whose sum is σ = 20294352. Its totient is φ = 8087040.

The previous prime is 13078889. The next prime is 13078903. The reversal of 13078899 is 99887031.

It is not a de Polignac number, because 13078899 - 2⁵ = 13078867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13078889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10584 + ... + 11754.

It is an arithmetic number, because the mean of its divisors is an integer number (845598).

Almost surely, 2^13078899 is an apocalyptic number.

13078899 is a deficient number, since it is larger than the sum of its proper divisors (7215453).

13078899 is a wasteful number, since it uses less digits than its factorization.

13078899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1264 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 13078899 is about 3616.4760472040. The cubic root of 13078899 is about 235.6081967299.

The spelling of 13078899 in words is "thirteen million, seventy-eight thousand, eight hundred ninety-nine".