13869893 has 4 divisors (see below), whose sum is σ = 13912128. Its totient is φ = 13827660.

The previous prime is 13869853. The next prime is 13869899. The reversal of 13869893 is 39896831.

13869893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13869893 - 2¹⁴ = 13853509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13869899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20621 + ... + 21282.

It is an arithmetic number, because the mean of its divisors is an integer number (3478032).

Almost surely, 2^13869893 is an apocalyptic number.

It is an amenable number.

13869893 is a deficient number, since it is larger than the sum of its proper divisors (42235).

13869893 is an equidigital number, since it uses as much as digits as its factorization.

13869893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42234.

The product of its digits is 279936, while the sum is 47.

The square root of 13869893 is about 3724.2305245513. The cubic root of 13869893 is about 240.2652911352.

The spelling of 13869893 in words is "thirteen million, eight hundred sixty-nine thousand, eight hundred ninety-three".