13927887 has 6 divisors (see below), whose sum is σ = 20118072. Its totient is φ = 9285252.

The previous prime is 13927867. The next prime is 13927909. The reversal of 13927887 is 78872931.

It is not a de Polignac number, because 13927887 - 2²⁰ = 12879311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13927807) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 773763 + ... + 773780.

It is an arithmetic number, because the mean of its divisors is an integer number (3353012).

Almost surely, 2^13927887 is an apocalyptic number.

13927887 is a deficient number, since it is larger than the sum of its proper divisors (6190185).

13927887 is a wasteful number, since it uses less digits than its factorization.

13927887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547549 (or 1547546 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 13927887 is about 3732.0084405049. The cubic root of 13927887 is about 240.5996981773.

The spelling of 13927887 in words is "thirteen million, nine hundred twenty-seven thousand, eight hundred eighty-seven".