18483863 has 4 divisors (see below), whose sum is σ = 18503760. Its totient is φ = 18463968.

The previous prime is 18483859. The next prime is 18483869. The reversal of 18483863 is 36838481.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36838481 = 337 ⋅109313.

It is a cyclic number.

It is not a de Polignac number, because 18483863 - 2² = 18483859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18483863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18483869) 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 in 3 ways as a sum of consecutive naturals, for example, 8483 + ... + 10436.

It is an arithmetic number, because the mean of its divisors is an integer number (4625940).

Almost surely, 2^18483863 is an apocalyptic number.

18483863 is a deficient number, since it is larger than the sum of its proper divisors (19897).

18483863 is an equidigital number, since it uses as much as digits as its factorization.

18483863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19896.

The product of its digits is 110592, while the sum is 41.

The square root of 18483863 is about 4299.2863361260. The cubic root of 18483863 is about 264.4017023181.

The spelling of 18483863 in words is "eighteen million, four hundred eighty-three thousand, eight hundred sixty-three".