7438339 has 2 divisors, whose sum is σ = 7438340. Its totient is φ = 7438338.

The previous prime is 7438337. The next prime is 7438349. The reversal of 7438339 is 9338347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7438339 - 2¹ = 7438337 is a prime.

Together with 7438337, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 7438298 and 7438307.

It is not a weakly prime, because it can be changed into another prime (7438331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3719169 + 3719170.

It is an arithmetic number, because the mean of its divisors is an integer number (3719170).

Almost surely, 2^7438339 is an apocalyptic number.

7438339 is a deficient number, since it is larger than the sum of its proper divisors (1).

7438339 is an equidigital number, since it uses as much as digits as its factorization.

7438339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 7438339 is about 2727.3318463289. The cubic root of 7438339 is about 195.2054726557.

It can be divided in two parts, 7438 and 339, that added together give a palindrome (7777).

The spelling of 7438339 in words is "seven million, four hundred thirty-eight thousand, three hundred thirty-nine".