13899291 has 24 divisors (see below), whose sum is σ = 22500864. Its totient is φ = 7595280.

The previous prime is 13899289. The next prime is 13899293. The reversal of 13899291 is 19299831.

13899291 is digitally balanced in base 3, 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 (13899289) and next prime (13899293).

It is not a de Polignac number, because 13899291 - 2¹ = 13899289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13899293) 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 23 ways as a sum of consecutive naturals, for example, 1326 + ... + 5436.

It is an arithmetic number, because the mean of its divisors is an integer number (937536).

Almost surely, 2^13899291 is an apocalyptic number.

13899291 is a deficient number, since it is larger than the sum of its proper divisors (8601573).

13899291 is a wasteful number, since it uses less digits than its factorization.

13899291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151 (or 4144 counting only the distinct ones).

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

The square root of 13899291 is about 3728.1752909433. The cubic root of 13899291 is about 240.4349231704.

The spelling of 13899291 in words is "thirteen million, eight hundred ninety-nine thousand, two hundred ninety-one".