13729223 has 2 divisors, whose sum is σ = 13729224. Its totient is φ = 13729222.

The previous prime is 13729207. The next prime is 13729291. The reversal of 13729223 is 32292731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13729223 - 2⁴ = 13729207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13729423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6864611 + 6864612.

It is an arithmetic number, because the mean of its divisors is an integer number (6864612).

Almost surely, 2^13729223 is an apocalyptic number.

13729223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13729223 is an equidigital number, since it uses as much as digits as its factorization.

13729223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 13729223 is about 3705.2966143077. The cubic root of 13729223 is about 239.4502637440.

The spelling of 13729223 in words is "thirteen million, seven hundred twenty-nine thousand, two hundred twenty-three".