18869107 has 4 divisors (see below), whose sum is σ = 18877816. Its totient is φ = 18860400.

The previous prime is 18869093. The next prime is 18869153. The reversal of 18869107 is 70196881.

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 18869107 - 2¹⁵ = 18836339 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 18869107.

It is not an unprimeable number, because it can be changed into a prime (18863107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1732 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (4719454).

Almost surely, 2^18869107 is an apocalyptic number.

18869107 is a deficient number, since it is larger than the sum of its proper divisors (8709).

18869107 is an equidigital number, since it uses as much as digits as its factorization.

18869107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 18869107 is about 4343.8585382123. The cubic root of 18869107 is about 266.2259890034.

The spelling of 18869107 in words is "eighteen million, eight hundred sixty-nine thousand, one hundred seven".