18869063 has 2 divisors, whose sum is σ = 18869064. Its totient is φ = 18869062.

The previous prime is 18869051. The next prime is 18869083. The reversal of 18869063 is 36096881.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (36096881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18869063 - 2⁴ = 18869047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18869063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18869003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9434531 + 9434532.

It is an arithmetic number, because the mean of its divisors is an integer number (9434532).

Almost surely, 2^18869063 is an apocalyptic number.

18869063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18869063 is an equidigital number, since it uses as much as digits as its factorization.

18869063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 18869063 is about 4343.8534735877. The cubic root of 18869063 is about 266.2257820699.

The spelling of 18869063 in words is "eighteen million, eight hundred sixty-nine thousand, sixty-three".