28955566 has 16 divisors (see below), whose sum is σ = 44089344. Its totient is φ = 14260824.

The previous prime is 28955513. The next prime is 28955569. The reversal of 28955566 is 66555982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28955569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75411 + ... + 75793.

It is an arithmetic number, because the mean of its divisors is an integer number (2755584).

Almost surely, 2^28955566 is an apocalyptic number.

28955566 is a deficient number, since it is larger than the sum of its proper divisors (15133778).

28955566 is a wasteful number, since it uses less digits than its factorization.

28955566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its digits is 648000, while the sum is 46.

The square root of 28955566 is about 5381.0376322787. The cubic root of 28955566 is about 307.0746881910.

It can be divided in two parts, 289 and 55566, that added together give a palindrome (55855).

The spelling of 28955566 in words is "twenty-eight million, nine hundred fifty-five thousand, five hundred sixty-six".