4247339 has 4 divisors (see below), whose sum is σ = 4291224. Its totient is φ = 4203456.

The previous prime is 4247333. The next prime is 4247363. The reversal of 4247339 is 9337424.

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 4247339 - 2¹² = 4243243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247333) 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, 21797 + ... + 21990.

It is an arithmetic number, because the mean of its divisors is an integer number (1072806).

Almost surely, 2^4247339 is an apocalyptic number.

4247339 is a deficient number, since it is larger than the sum of its proper divisors (43885).

4247339 is an equidigital number, since it uses as much as digits as its factorization.

4247339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43884.

The product of its digits is 18144, while the sum is 32.

The square root of 4247339 is about 2060.9073244569. The cubic root of 4247339 is about 161.9467767039.

The spelling of 4247339 in words is "four million, two hundred forty-seven thousand, three hundred thirty-nine".