13866899 has 8 divisors (see below), whose sum is σ = 14049552. Its totient is φ = 13685760.

The previous prime is 13866887. The next prime is 13866911. The reversal of 13866899 is 99866831.

It is an interprime number because it is at equal distance from previous prime (13866887) and next prime (13866911).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13866899 - 2¹⁶ = 13801363 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (13866869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39107 + ... + 39459.

It is an arithmetic number, because the mean of its divisors is an integer number (1756194).

Almost surely, 2^13866899 is an apocalyptic number.

13866899 is a deficient number, since it is larger than the sum of its proper divisors (182653).

13866899 is a wasteful number, since it uses less digits than its factorization.

13866899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its digits is 559872, while the sum is 50.

The square root of 13866899 is about 3723.8285406286. The cubic root of 13866899 is about 240.2480017433.

The spelling of 13866899 in words is "thirteen million, eight hundred sixty-six thousand, eight hundred ninety-nine".