28859222 has 32 divisors (see below), whose sum is σ = 51425280. Its totient is φ = 11890080.

The previous prime is 28859209. The next prime is 28859231. The reversal of 28859222 is 22295882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39779 + ... + 40497.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^28859222 is an apocalyptic number.

28859222 is a deficient number, since it is larger than the sum of its proper divisors (22566058).

28859222 is a wasteful number, since it uses less digits than its factorization.

28859222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its digits is 46080, while the sum is 38.

The square root of 28859222 is about 5372.0779964554. The cubic root of 28859222 is about 306.7337327065.

The spelling of 28859222 in words is "twenty-eight million, eight hundred fifty-nine thousand, two hundred twenty-two".