13912899 has 64 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 6451200.

The previous prime is 13912867. The next prime is 13912901. The reversal of 13912899 is 99821931.

It is a Cunningham number, because it is equal to 3730²-1.

It is not a de Polignac number, because 13912899 - 2⁵ = 13912867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13912899.

It is not an unprimeable number, because it can be changed into a prime (13912859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123067 + ... + 123179.

It is an arithmetic number, because the mean of its divisors is an integer number (402192).

Almost surely, 2^13912899 is an apocalyptic number.

13912899 is a deficient number, since it is larger than the sum of its proper divisors (11827389).

13912899 is a wasteful number, since it uses less digits than its factorization.

13912899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 34992, while the sum is 42.

The square root of 13912899 is about 3729.9998659517. Note that the first 3 decimals coincide. The cubic root of 13912899 is about 240.5133629330.

The spelling of 13912899 in words is "thirteen million, nine hundred twelve thousand, eight hundred ninety-nine".