28968826 has 24 divisors (see below), whose sum is σ = 45501120. Its totient is φ = 13828152.

The previous prime is 28968791. The next prime is 28968829. The reversal of 28968826 is 62886982.

It is a self number, because there is not a number n which added to its sum of digits gives 28968826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28968829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348981 + ... + 349063.

It is an arithmetic number, because the mean of its divisors is an integer number (1895880).

Almost surely, 2^28968826 is an apocalyptic number.

28968826 is a deficient number, since it is larger than the sum of its proper divisors (16532294).

28968826 is an equidigital number, since it uses as much as digits as its factorization.

28968826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 211 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 28968826 is about 5382.2695956260. The cubic root of 28968826 is about 307.1215552766.

The spelling of 28968826 in words is "twenty-eight million, nine hundred sixty-eight thousand, eight hundred twenty-six".