18854227 has 16 divisors (see below), whose sum is σ = 22643712. Its totient is φ = 15348960.

The previous prime is 18854189. The next prime is 18854233. The reversal of 18854227 is 72245881.

It is a cyclic number.

It is not a de Polignac number, because 18854227 - 2¹¹ = 18852179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18854237) 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, 28818 + ... + 29464.

It is an arithmetic number, because the mean of its divisors is an integer number (1415232).

Almost surely, 2^18854227 is an apocalyptic number.

18854227 is a deficient number, since it is larger than the sum of its proper divisors (3789485).

18854227 is a wasteful number, since it uses less digits than its factorization.

18854227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its digits is 35840, while the sum is 37.

The square root of 18854227 is about 4342.1454374537. The cubic root of 18854227 is about 266.1559894977.

The spelling of 18854227 in words is "eighteen million, eight hundred fifty-four thousand, two hundred twenty-seven".