18814339 has 2 divisors, whose sum is σ = 18814340. Its totient is φ = 18814338.

The previous prime is 18814331. The next prime is 18814423. The reversal of 18814339 is 93341881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18814339 - 2³ = 18814331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18814298 and 18814307.

It is not a weakly prime, because it can be changed into another prime (18814331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9407169 + 9407170.

It is an arithmetic number, because the mean of its divisors is an integer number (9407170).

Almost surely, 2^18814339 is an apocalyptic number.

18814339 is a deficient number, since it is larger than the sum of its proper divisors (1).

18814339 is an equidigital number, since it uses as much as digits as its factorization.

18814339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 18814339 is about 4337.5498844394. The cubic root of 18814339 is about 265.9681637893.

The spelling of 18814339 in words is "eighteen million, eight hundred fourteen thousand, three hundred thirty-nine".