13386881 has 4 divisors (see below), whose sum is σ = 13396992. Its totient is φ = 13376772.

The previous prime is 13386853. The next prime is 13386883. The reversal of 13386881 is 18868331.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18868331 = 1031 ⋅18301.

It is a cyclic number.

It is not a de Polignac number, because 13386881 - 2⁶ = 13386817 is a prime.

It is a super-2 number, since 2×13386881² = 358417165816322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13386883) 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, 2705 + ... + 5838.

It is an arithmetic number, because the mean of its divisors is an integer number (3349248).

Almost surely, 2^13386881 is an apocalyptic number.

It is an amenable number.

13386881 is a deficient number, since it is larger than the sum of its proper divisors (10111).

13386881 is an equidigital number, since it uses as much as digits as its factorization.

13386881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110.

The product of its digits is 27648, while the sum is 38.

The square root of 13386881 is about 3658.8086858976. The cubic root of 13386881 is about 237.4432351872.

The spelling of 13386881 in words is "thirteen million, three hundred eighty-six thousand, eight hundred eighty-one".