18669027 has 16 divisors (see below), whose sum is σ = 26986400. Its totient is φ = 11411712.

The previous prime is 18669017. The next prime is 18669029. The reversal of 18669027 is 72096681.

It is not a de Polignac number, because 18669027 - 2¹⁵ = 18636259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18669029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4599 + ... + 7647.

It is an arithmetic number, because the mean of its divisors is an integer number (1686650).

Almost surely, 2^18669027 is an apocalyptic number.

18669027 is a deficient number, since it is larger than the sum of its proper divisors (8317373).

18669027 is a wasteful number, since it uses less digits than its factorization.

18669027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 18669027 is about 4320.7669458095. The cubic root of 18669027 is about 265.2816608902.

The spelling of 18669027 in words is "eighteen million, six hundred sixty-nine thousand, twenty-seven".