4288439 has 2 divisors, whose sum is σ = 4288440. Its totient is φ = 4288438.

The previous prime is 4288397. The next prime is 4288441. The reversal of 4288439 is 9348824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4288439 - 2⁸ = 4288183 is a prime.

Together with 4288441, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4288489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144219 + 2144220.

It is an arithmetic number, because the mean of its divisors is an integer number (2144220).

Almost surely, 2^4288439 is an apocalyptic number.

4288439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4288439 is an equidigital number, since it uses as much as digits as its factorization.

4288439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 4288439 is about 2070.8546544845. The cubic root of 4288439 is about 162.4674680439.

The spelling of 4288439 in words is "four million, two hundred eighty-eight thousand, four hundred thirty-nine".