13985323 has 4 divisors (see below), whose sum is σ = 15256728. Its totient is φ = 12713920.

The previous prime is 13985317. The next prime is 13985333. The reversal of 13985323 is 32358931.

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-13985323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13985333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635686 + ... + 635707.

It is an arithmetic number, because the mean of its divisors is an integer number (3814182).

Almost surely, 2^13985323 is an apocalyptic number.

13985323 is a deficient number, since it is larger than the sum of its proper divisors (1271405).

13985323 is a wasteful number, since it uses less digits than its factorization.

13985323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271404.

The product of its digits is 19440, while the sum is 34.

The square root of 13985323 is about 3739.6955758457. The cubic root of 13985323 is about 240.9299739732.

It can be divided in two parts, 139853 and 23, that added together give a square (139876 = 374²).

The spelling of 13985323 in words is "thirteen million, nine hundred eighty-five thousand, three hundred twenty-three".