18836339 has 2 divisors, whose sum is σ = 18836340. Its totient is φ = 18836338.

The previous prime is 18836329. The next prime is 18836369. The reversal of 18836339 is 93363881.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18836339 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18836296 and 18836305.

It is not a weakly prime, because it can be changed into another prime (18836329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9418169 + 9418170.

It is an arithmetic number, because the mean of its divisors is an integer number (9418170).

Almost surely, 2^18836339 is an apocalyptic number.

18836339 is a deficient number, since it is larger than the sum of its proper divisors (1).

18836339 is an equidigital number, since it uses as much as digits as its factorization.

18836339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 18836339 is about 4340.0851374138. The cubic root of 18836339 is about 266.0717907871.

The spelling of 18836339 in words is "eighteen million, eight hundred thirty-six thousand, three hundred thirty-nine".