4243279 has 2 divisors, whose sum is σ = 4243280. Its totient is φ = 4243278.

The previous prime is 4243243. The next prime is 4243297. The reversal of 4243279 is 9723424.

Together with next prime (4243297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4243279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121639 + 2121640.

It is an arithmetic number, because the mean of its divisors is an integer number (2121640).

Almost surely, 2^4243279 is an apocalyptic number.

4243279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243279 is an equidigital number, since it uses as much as digits as its factorization.

4243279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 4243279 is about 2059.9220859052. The cubic root of 4243279 is about 161.8951590106.

The spelling of 4243279 in words is "four million, two hundred forty-three thousand, two hundred seventy-nine".