13843047 has 4 divisors (see below), whose sum is σ = 18457400. Its totient is φ = 9228696.

The previous prime is 13843031. The next prime is 13843057. The reversal of 13843047 is 74034831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13843047 - 2⁴ = 13843031 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13843007) 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, 2307172 + ... + 2307177.

It is an arithmetic number, because the mean of its divisors is an integer number (4614350).

Almost surely, 2^13843047 is an apocalyptic number.

13843047 is a deficient number, since it is larger than the sum of its proper divisors (4614353).

13843047 is an equidigital number, since it uses as much as digits as its factorization.

13843047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614352.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 13843047 is about 3720.6245443474. The cubic root of 13843047 is about 240.1101751094.

Adding to 13843047 its reverse (74034831), we get a palindrome (87877878).

The spelling of 13843047 in words is "thirteen million, eight hundred forty-three thousand, forty-seven".