5243999 has 4 divisors (see below), whose sum is σ = 5252280. Its totient is φ = 5235720.

The previous prime is 5243993. The next prime is 5244011. The reversal of 5243999 is 9993425.

5243999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5243999 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 (5243993) 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, 3104 + ... + 4485.

It is an arithmetic number, because the mean of its divisors is an integer number (1313070).

Almost surely, 2^5243999 is an apocalyptic number.

5243999 is a deficient number, since it is larger than the sum of its proper divisors (8281).

5243999 is an equidigital number, since it uses as much as digits as its factorization.

5243999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280.

The product of its digits is 87480, while the sum is 41.

The square root of 5243999 is about 2289.9779474921. The cubic root of 5243999 is about 173.7350859307.

The spelling of 5243999 in words is "five million, two hundred forty-three thousand, nine hundred ninety-nine".