13696881 has 16 divisors (see below), whose sum is σ = 20348928. Its totient is φ = 8123600.

The previous prime is 13696873. The next prime is 13696931. The reversal of 13696881 is 18869631.

It is a cyclic number.

It is not a de Polignac number, because 13696881 - 2³ = 13696873 is a prime.

It is a super-2 number, since 2×13696881² = 375209098256322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13696841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2865 + ... + 5966.

It is an arithmetic number, because the mean of its divisors is an integer number (1271808).

Almost surely, 2^13696881 is an apocalyptic number.

13696881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13696881 is a deficient number, since it is larger than the sum of its proper divisors (6652047).

13696881 is a wasteful number, since it uses less digits than its factorization.

13696881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892.

The product of its digits is 62208, while the sum is 42.

The square root of 13696881 is about 3700.9297480498. The cubic root of 13696881 is about 239.2620911748.

The spelling of 13696881 in words is "thirteen million, six hundred ninety-six thousand, eight hundred eighty-one".