28456822 has 8 divisors (see below), whose sum is σ = 44062272. Its totient is φ = 13769400.

The previous prime is 28456817. The next prime is 28456837. The reversal of 28456822 is 22865482.

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, 229429 + ... + 229552.

It is an arithmetic number, because the mean of its divisors is an integer number (5507784).

Almost surely, 2^28456822 is an apocalyptic number.

28456822 is a deficient number, since it is larger than the sum of its proper divisors (15605450).

28456822 is a wasteful number, since it uses less digits than its factorization.

28456822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459014.

The product of its digits is 61440, while the sum is 37.

The square root of 28456822 is about 5334.4936029580. The cubic root of 28456822 is about 305.3014023146.

The spelling of 28456822 in words is "twenty-eight million, four hundred fifty-six thousand, eight hundred twenty-two".