13676981 has 2 divisors, whose sum is σ = 13676982. Its totient is φ = 13676980.

The previous prime is 13676917. The next prime is 13676987. The reversal of 13676981 is 18967631.

13676981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10666756 + 3010225 = 3266^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 13676981 - 2⁶ = 13676917 is a prime.

It is a super-2 number, since 2×13676981² = 374119618548722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13676987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6838490 + 6838491.

It is an arithmetic number, because the mean of its divisors is an integer number (6838491).

Almost surely, 2^13676981 is an apocalyptic number.

It is an amenable number.

13676981 is a deficient number, since it is larger than the sum of its proper divisors (1).

13676981 is an equidigital number, since it uses as much as digits as its factorization.

13676981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 13676981 is about 3698.2402572034. The cubic root of 13676981 is about 239.1461615370.

The spelling of 13676981 in words is "thirteen million, six hundred seventy-six thousand, nine hundred eighty-one".