18499363 has 2 divisors, whose sum is σ = 18499364. Its totient is φ = 18499362.

The previous prime is 18499357. The next prime is 18499367. The reversal of 18499363 is 36399481.

It is a strong prime.

It is an emirp because it is prime and its reverse (36399481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18499363 - 2¹⁷ = 18368291 is a prime.

It is not a weakly prime, because it can be changed into another prime (18499367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9249681 + 9249682.

It is an arithmetic number, because the mean of its divisors is an integer number (9249682).

Almost surely, 2^18499363 is an apocalyptic number.

18499363 is a deficient number, since it is larger than the sum of its proper divisors (1).

18499363 is an equidigital number, since it uses as much as digits as its factorization.

18499363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 18499363 is about 4301.0885831380. The cubic root of 18499363 is about 264.4755880524.

The spelling of 18499363 in words is "eighteen million, four hundred ninety-nine thousand, three hundred sixty-three".