13009899 has 16 divisors (see below), whose sum is σ = 19941120. Its totient is φ = 7390560.

The previous prime is 13009823. The next prime is 13009901. The reversal of 13009899 is 99890031.

13009899 = T₇₀ + T₇₁ + ... + T₄₂₇.

It is not a de Polignac number, because 13009899 - 2⁷ = 13009771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13007899) 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 15 ways as a sum of consecutive naturals, for example, 2029 + ... + 5489.

It is an arithmetic number, because the mean of its divisors is an integer number (1246320).

Almost surely, 2^13009899 is an apocalyptic number.

13009899 is a deficient number, since it is larger than the sum of its proper divisors (6931221).

13009899 is a wasteful number, since it uses less digits than its factorization.

13009899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 13009899 is about 3606.9237585510. The cubic root of 13009899 is about 235.1931353277.

The spelling of 13009899 in words is "thirteen million, nine thousand, eight hundred ninety-nine".