4239743 has 2 divisors, whose sum is σ = 4239744. Its totient is φ = 4239742.

The previous prime is 4239737. The next prime is 4239761. The reversal of 4239743 is 3479324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4239743 - 2⁴ = 4239727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4239733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119871 + 2119872.

It is an arithmetic number, because the mean of its divisors is an integer number (2119872).

Almost surely, 2^4239743 is an apocalyptic number.

4239743 is a deficient number, since it is larger than the sum of its proper divisors (1).

4239743 is an equidigital number, since it uses as much as digits as its factorization.

4239743 is an evil number, because the sum of its binary digits is even.

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

The square root of 4239743 is about 2059.0636221351. The cubic root of 4239743 is about 161.8501764731.

The spelling of 4239743 in words is "four million, two hundred thirty-nine thousand, seven hundred forty-three".