18382963 has 4 divisors (see below), whose sum is σ = 18392328. Its totient is φ = 18373600.

The previous prime is 18382951. The next prime is 18382979. The reversal of 18382963 is 36928381.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18382963 - 2¹³ = 18374771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18382943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481 + ... + 6082.

It is an arithmetic number, because the mean of its divisors is an integer number (4598082).

Almost surely, 2^18382963 is an apocalyptic number.

18382963 is a deficient number, since it is larger than the sum of its proper divisors (9365).

18382963 is an equidigital number, since it uses as much as digits as its factorization.

18382963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9364.

The product of its digits is 62208, while the sum is 40.

The square root of 18382963 is about 4287.5357724455. The cubic root of 18382963 is about 263.9197175154.

The spelling of 18382963 in words is "eighteen million, three hundred eighty-two thousand, nine hundred sixty-three".