16881227 has 4 divisors (see below), whose sum is σ = 18415896. Its totient is φ = 15346560.

The previous prime is 16881223. The next prime is 16881239. The reversal of 16881227 is 72218861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16881227 - 2² = 16881223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16881223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767318 + ... + 767339.

It is an arithmetic number, because the mean of its divisors is an integer number (4603974).

Almost surely, 2^16881227 is an apocalyptic number.

16881227 is a deficient number, since it is larger than the sum of its proper divisors (1534669).

16881227 is a wasteful number, since it uses less digits than its factorization.

16881227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534668.

The product of its digits is 10752, while the sum is 35.

The square root of 16881227 is about 4108.6770376850. The cubic root of 16881227 is about 256.5279378112.

The spelling of 16881227 in words is "sixteen million, eight hundred eighty-one thousand, two hundred twenty-seven".