4243747 has 2 divisors, whose sum is σ = 4243748. Its totient is φ = 4243746.

The previous prime is 4243721. The next prime is 4243781. The reversal of 4243747 is 7473424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4243747 - 2⁷ = 4243619 is a prime.

It is not a weakly prime, because it can be changed into another prime (4243147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121873 + 2121874.

It is an arithmetic number, because the mean of its divisors is an integer number (2121874).

Almost surely, 2^4243747 is an apocalyptic number.

4243747 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243747 is an equidigital number, since it uses as much as digits as its factorization.

4243747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 31.

The square root of 4243747 is about 2060.0356793027. The cubic root of 4243747 is about 161.9011107088.

The spelling of 4243747 in words is "four million, two hundred forty-three thousand, seven hundred forty-seven".