13836009 has 16 divisors (see below), whose sum is σ = 21185280. Its totient is φ = 7943760.

The previous prime is 13836007. The next prime is 13836019. The reversal of 13836009 is 90063831.

It is not a de Polignac number, because 13836009 - 2¹ = 13836007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13836007) 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, 10407 + ... + 11660.

It is an arithmetic number, because the mean of its divisors is an integer number (1324080).

Almost surely, 2^13836009 is an apocalyptic number.

13836009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13836009 is a deficient number, since it is larger than the sum of its proper divisors (7349271).

13836009 is a wasteful number, since it uses less digits than its factorization.

13836009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22100.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13836009 is about 3719.6786151494. The cubic root of 13836009 is about 240.0694764135.

The spelling of 13836009 in words is "thirteen million, eight hundred thirty-six thousand, nine".