28859233 has 16 divisors (see below), whose sum is σ = 33779200. Its totient is φ = 24416640.

The previous prime is 28859231. The next prime is 28859239. The reversal of 28859233 is 33295882.

It is a cyclic number.

It is not a de Polignac number, because 28859233 - 2¹ = 28859231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28859231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5773 + ... + 9541.

It is an arithmetic number, because the mean of its divisors is an integer number (2111200).

Almost surely, 2^28859233 is an apocalyptic number.

It is an amenable number.

28859233 is a deficient number, since it is larger than the sum of its proper divisors (4919967).

28859233 is a wasteful number, since it uses less digits than its factorization.

28859233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832.

The product of its digits is 103680, while the sum is 40.

The square root of 28859233 is about 5372.0790202677. The cubic root of 28859233 is about 306.7337716781.

It can be divided in two parts, 28859 and 233, that added together give a palindrome (29092).

The spelling of 28859233 in words is "twenty-eight million, eight hundred fifty-nine thousand, two hundred thirty-three".