13947323 has 12 divisors (see below), whose sum is σ = 15311520. Its totient is φ = 12629232.

The previous prime is 13947319. The next prime is 13947331. The reversal of 13947323 is 32374931.

It is not a de Polignac number, because 13947323 - 2² = 13947319 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 13947323.

It is not an unprimeable number, because it can be changed into a prime (13947823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58238 + ... + 58476.

It is an arithmetic number, because the mean of its divisors is an integer number (1275960).

Almost surely, 2^13947323 is an apocalyptic number.

13947323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13947323 is a deficient number, since it is larger than the sum of its proper divisors (1364197).

13947323 is an equidigital number, since it uses as much as digits as its factorization.

13947323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 319 counting only the distinct ones).

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

The square root of 13947323 is about 3734.6114925116. The cubic root of 13947323 is about 240.7115630089.

The spelling of 13947323 in words is "thirteen million, nine hundred forty-seven thousand, three hundred twenty-three".