13204943 has 4 divisors (see below), whose sum is σ = 13899960. Its totient is φ = 12509928.

The previous prime is 13204907. The next prime is 13204949. The reversal of 13204943 is 34940231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34940231 = 683 ⋅51157.

It is a cyclic number.

It is not a de Polignac number, because 13204943 - 2⁶ = 13204879 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 (13204949) 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, 347480 + ... + 347517.

It is an arithmetic number, because the mean of its divisors is an integer number (3474990).

Almost surely, 2^13204943 is an apocalyptic number.

13204943 is a deficient number, since it is larger than the sum of its proper divisors (695017).

13204943 is an equidigital number, since it uses as much as digits as its factorization.

13204943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695016.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13204943 is about 3633.8606192313. The cubic root of 13204943 is about 236.3626462797.

The spelling of 13204943 in words is "thirteen million, two hundred four thousand, nine hundred forty-three".