13896881 has 2 divisors, whose sum is σ = 13896882. Its totient is φ = 13896880.

The previous prime is 13896877. The next prime is 13896907. The reversal of 13896881 is 18869831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13256881 + 640000 = 3641^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 13896881 - 2² = 13896877 is a prime.

It is a super-2 number, since 2×13896881² = 386246603056322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13896821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948440 + 6948441.

It is an arithmetic number, because the mean of its divisors is an integer number (6948441).

Almost surely, 2^13896881 is an apocalyptic number.

It is an amenable number.

13896881 is a deficient number, since it is larger than the sum of its proper divisors (1).

13896881 is an equidigital number, since it uses as much as digits as its factorization.

13896881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 44.

The square root of 13896881 is about 3727.8520625154. The cubic root of 13896881 is about 240.4210260189.

The spelling of 13896881 in words is "thirteen million, eight hundred ninety-six thousand, eight hundred eighty-one".