4001339 has 2 divisors, whose sum is σ = 4001340. Its totient is φ = 4001338.

The previous prime is 4001303. The next prime is 4001357. The reversal of 4001339 is 9331004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001339 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4001339.

It is not a weakly prime, because it can be changed into another prime (4001369) 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, 2000669 + 2000670.

It is an arithmetic number, because the mean of its divisors is an integer number (2000670).

Almost surely, 2^4001339 is an apocalyptic number.

4001339 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001339 is an equidigital number, since it uses as much as digits as its factorization.

4001339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 4001339 is about 2000.3347219903. The cubic root of 4001339 is about 158.7578159708.

The spelling of 4001339 in words is "four million, one thousand, three hundred thirty-nine".