13729927 has 2 divisors, whose sum is σ = 13729928. Its totient is φ = 13729926.

The previous prime is 13729907. The next prime is 13729973. The reversal of 13729927 is 72992731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13729927 - 2²³ = 5341319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13729927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13729907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6864963 + 6864964.

It is an arithmetic number, because the mean of its divisors is an integer number (6864964).

Almost surely, 2^13729927 is an apocalyptic number.

13729927 is a deficient number, since it is larger than the sum of its proper divisors (1).

13729927 is an equidigital number, since it uses as much as digits as its factorization.

13729927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 40.

The square root of 13729927 is about 3705.3916122321. The cubic root of 13729927 is about 239.4543564764.

It can be divided in two parts, 137299 and 27, that multiplied together give a palindrome (3707073).

The spelling of 13729927 in words is "thirteen million, seven hundred twenty-nine thousand, nine hundred twenty-seven".