13399727 has 4 divisors (see below), whose sum is σ = 14617896. Its totient is φ = 12181560.

The previous prime is 13399709. The next prime is 13399811. The reversal of 13399727 is 72799331.

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

It is a cyclic number.

It is not a de Polignac number, because 13399727 - 2⁶ = 13399663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399027) 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, 609068 + ... + 609089.

It is an arithmetic number, because the mean of its divisors is an integer number (3654474).

Almost surely, 2^13399727 is an apocalyptic number.

13399727 is a deficient number, since it is larger than the sum of its proper divisors (1218169).

13399727 is a wasteful number, since it uses less digits than its factorization.

13399727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218168.

The product of its digits is 71442, while the sum is 41.

The square root of 13399727 is about 3660.5637543963. The cubic root of 13399727 is about 237.5191607810.

The spelling of 13399727 in words is "thirteen million, three hundred ninety-nine thousand, seven hundred twenty-seven".