18286039 has 2 divisors, whose sum is σ = 18286040. Its totient is φ = 18286038.

The previous prime is 18286003. The next prime is 18286043. The reversal of 18286039 is 93068281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18286039 - 2¹⁵ = 18253271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18285989 and 18286007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18286049) 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, 9143019 + 9143020.

It is an arithmetic number, because the mean of its divisors is an integer number (9143020).

Almost surely, 2^18286039 is an apocalyptic number.

18286039 is a deficient number, since it is larger than the sum of its proper divisors (1).

18286039 is an equidigital number, since it uses as much as digits as its factorization.

18286039 is an odious number, because the sum of its binary digits is odd.

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

The square root of 18286039 is about 4276.2178382304. The cubic root of 18286039 is about 263.4550618467.

The spelling of 18286039 in words is "eighteen million, two hundred eighty-six thousand, thirty-nine".