28867227 has 8 divisors (see below), whose sum is σ = 38793216. Its totient is φ = 19093032.

The previous prime is 28867217. The next prime is 28867253. The reversal of 28867227 is 72276882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28867227 - 2⁴ = 28867211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28867217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37503 + ... + 38264.

It is an arithmetic number, because the mean of its divisors is an integer number (4849152).

Almost surely, 2^28867227 is an apocalyptic number.

28867227 is a deficient number, since it is larger than the sum of its proper divisors (9925989).

28867227 is a wasteful number, since it uses less digits than its factorization.

28867227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75897.

The product of its digits is 150528, while the sum is 42.

The square root of 28867227 is about 5372.8230009931. The cubic root of 28867227 is about 306.7620907884.

The spelling of 28867227 in words is "twenty-eight million, eight hundred sixty-seven thousand, two hundred twenty-seven".