13538893 has 4 divisors (see below), whose sum is σ = 13580128. Its totient is φ = 13497660.

The previous prime is 13538879. The next prime is 13538923. The reversal of 13538893 is 39883531.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39883531 = 181 ⋅220351.

It is a cyclic number.

It is not a de Polignac number, because 13538893 - 2⁹ = 13538381 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 (13538813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20121 + ... + 20782.

It is an arithmetic number, because the mean of its divisors is an integer number (3395032).

Almost surely, 2^13538893 is an apocalyptic number.

It is an amenable number.

13538893 is a deficient number, since it is larger than the sum of its proper divisors (41235).

13538893 is an equidigital number, since it uses as much as digits as its factorization.

13538893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41234.

The product of its digits is 77760, while the sum is 40.

The square root of 13538893 is about 3679.5234745820. The cubic root of 13538893 is about 238.3386007388.

The spelling of 13538893 in words is "thirteen million, five hundred thirty-eight thousand, eight hundred ninety-three".