28586227 has 8 divisors (see below), whose sum is σ = 28966896. Its totient is φ = 28207872.

The previous prime is 28586221. The next prime is 28586251. The reversal of 28586227 is 72268582.

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

It is a cyclic number.

It is not a de Polignac number, because 28586227 - 2³ = 28586219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28586227.

It is not an unprimeable number, because it can be changed into a prime (28586221) 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 7 ways as a sum of consecutive naturals, for example, 46023 + ... + 46639.

It is an arithmetic number, because the mean of its divisors is an integer number (3620862).

Almost surely, 2^28586227 is an apocalyptic number.

28586227 is a deficient number, since it is larger than the sum of its proper divisors (380669).

28586227 is a wasteful number, since it uses less digits than its factorization.

28586227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157.

The product of its digits is 107520, while the sum is 40.

The square root of 28586227 is about 5346.6089252909. The cubic root of 28586227 is about 305.7634800674.

The spelling of 28586227 in words is "twenty-eight million, five hundred eighty-six thousand, two hundred twenty-seven".