28583222 has 8 divisors (see below), whose sum is σ = 45396936. Its totient is φ = 13450912.

The previous prime is 28583207. The next prime is 28583287. The reversal of 28583222 is 22238582.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420308 + ... + 420375.

It is an arithmetic number, because the mean of its divisors is an integer number (5674617).

Almost surely, 2^28583222 is an apocalyptic number.

28583222 is a deficient number, since it is larger than the sum of its proper divisors (16813714).

28583222 is a wasteful number, since it uses less digits than its factorization.

28583222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840702.

The product of its digits is 15360, while the sum is 32.

The square root of 28583222 is about 5346.3278986609. The cubic root of 28583222 is about 305.7527656832.

The spelling of 28583222 in words is "twenty-eight million, five hundred eighty-three thousand, two hundred twenty-two".