18289107 has 12 divisors (see below), whose sum is σ = 26455000. Its totient is φ = 12175488.

The previous prime is 18289099. The next prime is 18289109. The reversal of 18289107 is 70198281.

It is not a de Polignac number, because 18289107 - 2³ = 18289099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18289109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10428 + ... + 12054.

Almost surely, 2^18289107 is an apocalyptic number.

18289107 is a deficient number, since it is larger than the sum of its proper divisors (8165893).

18289107 is a wasteful number, since it uses less digits than its factorization.

18289107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 18289107 is about 4276.5765514018. The cubic root of 18289107 is about 263.4697950344.

The spelling of 18289107 in words is "eighteen million, two hundred eighty-nine thousand, one hundred seven".