13887441 has 12 divisors (see below), whose sum is σ = 20214480. Its totient is φ = 9186840.

The previous prime is 13887427. The next prime is 13887449. The reversal of 13887441 is 14478831.

13887441 is a `hidden beast` number, since 138 + 87 + 441 = 666.

It is not a de Polignac number, because 13887441 - 2¹¹ = 13885393 is a prime.

It is a super-2 number, since 2×13887441² = 385722035056962, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13887396 and 13887405.

It is not an unprimeable number, because it can be changed into a prime (13887449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4711 + ... + 7068.

It is an arithmetic number, because the mean of its divisors is an integer number (1684540).

Almost surely, 2^13887441 is an apocalyptic number.

It is an amenable number.

13887441 is a deficient number, since it is larger than the sum of its proper divisors (6327039).

13887441 is a wasteful number, since it uses less digits than its factorization.

13887441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916 (or 11913 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 13887441 is about 3726.5857027580. The cubic root of 13887441 is about 240.3665752258.

The spelling of 13887441 in words is "thirteen million, eight hundred eighty-seven thousand, four hundred forty-one".