13627987 has 4 divisors (see below), whose sum is σ = 13719600. Its totient is φ = 13536376.

The previous prime is 13627981. The next prime is 13628011. The reversal of 13627987 is 78972631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13627987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13627981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45583 + ... + 45880.

It is an arithmetic number, because the mean of its divisors is an integer number (3429900).

Almost surely, 2^13627987 is an apocalyptic number.

13627987 is a deficient number, since it is larger than the sum of its proper divisors (91613).

13627987 is an equidigital number, since it uses as much as digits as its factorization.

13627987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91612.

The product of its digits is 127008, while the sum is 43.

The square root of 13627987 is about 3691.6103532199. The cubic root of 13627987 is about 238.8602615617.

The spelling of 13627987 in words is "thirteen million, six hundred twenty-seven thousand, nine hundred eighty-seven".