28563422 has 8 divisors (see below), whose sum is σ = 45100200. Its totient is φ = 13530024.

The previous prime is 28563419. The next prime is 28563427. The reversal of 28563422 is 22436582.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28563427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375797 + ... + 375872.

It is an arithmetic number, because the mean of its divisors is an integer number (5637525).

Almost surely, 2^28563422 is an apocalyptic number.

28563422 is a deficient number, since it is larger than the sum of its proper divisors (16536778).

28563422 is a wasteful number, since it uses less digits than its factorization.

28563422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751690.

The product of its digits is 23040, while the sum is 32.

The square root of 28563422 is about 5344.4758395936. The cubic root of 28563422 is about 305.6821496277.

The spelling of 28563422 in words is "twenty-eight million, five hundred sixty-three thousand, four hundred twenty-two".