13639927 has 16 divisors (see below), whose sum is σ = 16015360. Its totient is φ = 11376288.

The previous prime is 13639919. The next prime is 13639937. The reversal of 13639927 is 72993631.

It is not a de Polignac number, because 13639927 - 2³ = 13639919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13639927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13639937) 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 in 15 ways as a sum of consecutive naturals, for example, 59449 + ... + 59677.

It is an arithmetic number, because the mean of its divisors is an integer number (1000960).

Almost surely, 2^13639927 is an apocalyptic number.

13639927 is a deficient number, since it is larger than the sum of its proper divisors (2375433).

13639927 is a wasteful number, since it uses less digits than its factorization.

13639927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its digits is 61236, while the sum is 40.

The square root of 13639927 is about 3693.2271795816. The cubic root of 13639927 is about 238.9299993988.

The spelling of 13639927 in words is "thirteen million, six hundred thirty-nine thousand, nine hundred twenty-seven".