338979539 has 2 divisors, whose sum is σ = 338979540. Its totient is φ = 338979538.

The previous prime is 338979523. The next prime is 338979559. The reversal of 338979539 is 935979833.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 338979539 - 2⁴ = 338979523 is a prime.

It is a super-2 number, since 2×338979539² = 229814255721305042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (338979559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169489769 + 169489770.

It is an arithmetic number, because the mean of its divisors is an integer number (169489770).

Almost surely, 2^338979539 is an apocalyptic number.

338979539 is a deficient number, since it is larger than the sum of its proper divisors (1).

338979539 is an equidigital number, since it uses as much as digits as its factorization.

338979539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 56.

The square root of 338979539 is about 18411.3969866493. The cubic root of 338979539 is about 697.2542362873.

It can be divided in two parts, 3389 and 79539, that added together give a palindrome (82928).

The spelling of 338979539 in words is "three hundred thirty-eight million, nine hundred seventy-nine thousand, five hundred thirty-nine".