13504843 has 4 divisors (see below), whose sum is σ = 14732568. Its totient is φ = 12277120.

The previous prime is 13504819. The next prime is 13504859. The reversal of 13504843 is 34840531.

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 13504843 - 2⁹ = 13504331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13504643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613846 + ... + 613867.

It is an arithmetic number, because the mean of its divisors is an integer number (3683142).

Almost surely, 2^13504843 is an apocalyptic number.

13504843 is a deficient number, since it is larger than the sum of its proper divisors (1227725).

13504843 is a wasteful number, since it uses less digits than its factorization.

13504843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227724.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 13504843 is about 3674.8936039020. The cubic root of 13504843 is about 238.1386276625.

The spelling of 13504843 in words is "thirteen million, five hundred four thousand, eight hundred forty-three".