13887266 has 16 divisors (see below), whose sum is σ = 22163544. Its totient is φ = 6503424.

The previous prime is 13887253. The next prime is 13887281. The reversal of 13887266 is 66278831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7958041 + 5929225 = 2821^2 + 2435^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7046 + ... + 8798.

Almost surely, 2^13887266 is an apocalyptic number.

13887266 is a deficient number, since it is larger than the sum of its proper divisors (8276278).

13887266 is a wasteful number, since it uses less digits than its factorization.

13887266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its digits is 96768, while the sum is 41.

The square root of 13887266 is about 3726.5622227463. The cubic root of 13887266 is about 240.3655655767.

The spelling of 13887266 in words is "thirteen million, eight hundred eighty-seven thousand, two hundred sixty-six".