4138579 has 2 divisors, whose sum is σ = 4138580. Its totient is φ = 4138578.

The previous prime is 4138577. The next prime is 4138583. The reversal of 4138579 is 9758314.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4138579 - 2¹ = 4138577 is a prime.

It is a super-2 number, since 2×4138579² = 34255672278482, which contains 22 as substring.

Together with 4138577, it forms a pair of twin primes.

4138579 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4138577) 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, 2069289 + 2069290.

It is an arithmetic number, because the mean of its divisors is an integer number (2069290).

Almost surely, 2^4138579 is an apocalyptic number.

4138579 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138579 is an equidigital number, since it uses as much as digits as its factorization.

4138579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 4138579 is about 2034.3497732691. The cubic root of 4138579 is about 160.5525039873.

The spelling of 4138579 in words is "four million, one hundred thirty-eight thousand, five hundred seventy-nine".