28163822 has 16 divisors (see below), whose sum is σ = 44809632. Its totient is φ = 13247520.

The previous prime is 28163803. The next prime is 28163851. The reversal of 28163822 is 22836182.

28163822 is nontrivially palindromic in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2213 + ... + 7824.

It is an arithmetic number, because the mean of its divisors is an integer number (2800602).

Almost surely, 2^28163822 is an apocalyptic number.

28163822 is a deficient number, since it is larger than the sum of its proper divisors (16645810).

28163822 is a wasteful number, since it uses less digits than its factorization.

28163822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10123.

The product of its digits is 9216, while the sum is 32.

The square root of 28163822 is about 5306.9597699625. The cubic root of 28163822 is about 304.2499603332.

The spelling of 28163822 in words is "twenty-eight million, one hundred sixty-three thousand, eight hundred twenty-two".