13976689 has 2 divisors, whose sum is σ = 13976690. Its totient is φ = 13976688.

The previous prime is 13976681. The next prime is 13976693. The reversal of 13976689 is 98667931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10336225 + 3640464 = 3215^2 + 1908^2 .

It is a cyclic number.

It is not a de Polignac number, because 13976689 - 2³ = 13976681 is a prime.

It is not a weakly prime, because it can be changed into another prime (13976681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6988344 + 6988345.

It is an arithmetic number, because the mean of its divisors is an integer number (6988345).

Almost surely, 2^13976689 is an apocalyptic number.

It is an amenable number.

13976689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13976689 is an equidigital number, since it uses as much as digits as its factorization.

13976689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 13976689 is about 3738.5410255874. The cubic root of 13976689 is about 240.8803834699.

The spelling of 13976689 in words is "thirteen million, nine hundred seventy-six thousand, six hundred eighty-nine".