4288939 has 2 divisors, whose sum is σ = 4288940. Its totient is φ = 4288938.

The previous prime is 4288937. The next prime is 4288951. The reversal of 4288939 is 9398824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4288939 - 2¹ = 4288937 is a prime.

Together with 4288937, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4288895 and 4288904.

It is not a weakly prime, because it can be changed into another prime (4288937) 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 as a sum of consecutive naturals, namely, 2144469 + 2144470.

It is an arithmetic number, because the mean of its divisors is an integer number (2144470).

Almost surely, 2^4288939 is an apocalyptic number.

4288939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4288939 is an equidigital number, since it uses as much as digits as its factorization.

4288939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 4288939 is about 2070.9753740689. The cubic root of 4288939 is about 162.4737819635.

The spelling of 4288939 in words is "four million, two hundred eighty-eight thousand, nine hundred thirty-nine".