13343999 has 4 divisors (see below), whose sum is σ = 13481664. Its totient is φ = 13206336.

The previous prime is 13343987. The next prime is 13344007. The reversal of 13343999 is 99934331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99934331 = 7 ⋅14276333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13343999 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 (13343899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68687 + ... + 68880.

It is an arithmetic number, because the mean of its divisors is an integer number (3370416).

Almost surely, 2^13343999 is an apocalyptic number.

13343999 is a deficient number, since it is larger than the sum of its proper divisors (137665).

13343999 is an equidigital number, since it uses as much as digits as its factorization.

13343999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137664.

The product of its digits is 78732, while the sum is 41.

The square root of 13343999 is about 3652.9438813100. The cubic root of 13343999 is about 237.1894311783.

The spelling of 13343999 in words is "thirteen million, three hundred forty-three thousand, nine hundred ninety-nine".