13749323 has 4 divisors (see below), whose sum is σ = 15713520. Its totient is φ = 11785128.

The previous prime is 13749319. The next prime is 13749347. The reversal of 13749323 is 32394731.

13749323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13749323 - 2² = 13749319 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 13749323.

It is not an unprimeable number, because it can be changed into a prime (13749383) 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, 982088 + ... + 982101.

It is an arithmetic number, because the mean of its divisors is an integer number (3928380).

Almost surely, 2^13749323 is an apocalyptic number.

13749323 is a deficient number, since it is larger than the sum of its proper divisors (1964197).

13749323 is an equidigital number, since it uses as much as digits as its factorization.

13749323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964196.

The product of its digits is 13608, while the sum is 32.

The square root of 13749323 is about 3708.0079557628. The cubic root of 13749323 is about 239.5670609204.

The spelling of 13749323 in words is "thirteen million, seven hundred forty-nine thousand, three hundred twenty-three".