18675207 has 6 divisors (see below), whose sum is σ = 26975312. Its totient is φ = 12450132.

The previous prime is 18675199. The next prime is 18675247. The reversal of 18675207 is 70257681.

It is not a de Polignac number, because 18675207 - 2³ = 18675199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18675247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1037503 + ... + 1037520.

Almost surely, 2^18675207 is an apocalyptic number.

18675207 is a deficient number, since it is larger than the sum of its proper divisors (8300105).

18675207 is a wasteful number, since it uses less digits than its factorization.

18675207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075029 (or 2075026 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 18675207 is about 4321.4820374497. The cubic root of 18675207 is about 265.3109296856.

The spelling of 18675207 in words is "eighteen million, six hundred seventy-five thousand, two hundred seven".