18869363 has 2 divisors, whose sum is σ = 18869364. Its totient is φ = 18869362.

The previous prime is 18869353. The next prime is 18869377. The reversal of 18869363 is 36396881.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18869363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18869353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9434681 + 9434682.

It is an arithmetic number, because the mean of its divisors is an integer number (9434682).

Almost surely, 2^18869363 is an apocalyptic number.

18869363 is a deficient number, since it is larger than the sum of its proper divisors (1).

18869363 is an equidigital number, since it uses as much as digits as its factorization.

18869363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 18869363 is about 4343.8880050020. Note that the first 3 decimals coincide. The cubic root of 18869363 is about 266.2271929739.

The spelling of 18869363 in words is "eighteen million, eight hundred sixty-nine thousand, three hundred sixty-three".