28822563 has 72 divisors (see below), whose sum is σ = 55328000. Its totient is φ = 14113440.

The previous prime is 28822559. The next prime is 28822567. The reversal of 28822563 is 36522882.

It is an interprime number because it is at equal distance from previous prime (28822559) and next prime (28822567).

It is not a de Polignac number, because 28822563 - 2² = 28822559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28822567) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 144738 + ... + 144936.

Almost surely, 2^28822563 is an apocalyptic number.

28822563 is a deficient number, since it is larger than the sum of its proper divisors (26505437).

28822563 is a wasteful number, since it uses less digits than its factorization.

28822563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 239 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 28822563 is about 5368.6649178357. The cubic root of 28822563 is about 306.6037994686.

It can be divided in two parts, 2882 and 2563, that added together give a palindrome (5445).

The spelling of 28822563 in words is "twenty-eight million, eight hundred twenty-two thousand, five hundred sixty-three".