18856107 has 12 divisors (see below), whose sum is σ = 27502384. Its totient is φ = 12448080.

The previous prime is 18856087. The next prime is 18856129. The reversal of 18856107 is 70165881.

It is not a de Polignac number, because 18856107 - 2⁷ = 18855979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18856147) 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, 9244 + ... + 11097.

Almost surely, 2^18856107 is an apocalyptic number.

18856107 is a deficient number, since it is larger than the sum of its proper divisors (8646277).

18856107 is a wasteful number, since it uses less digits than its factorization.

18856107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20450 (or 20447 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 18856107 is about 4342.3619149030. The cubic root of 18856107 is about 266.1648355534.

The spelling of 18856107 in words is "eighteen million, eight hundred fifty-six thousand, one hundred seven".