28536833 has 16 divisors (see below), whose sum is σ = 31987200. Its totient is φ = 25431120.

The previous prime is 28536797. The next prime is 28536847. The reversal of 28536833 is 33863582.

It is not a de Polignac number, because 28536833 - 2⁶ = 28536769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28536853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67898 + ... + 68316.

It is an arithmetic number, because the mean of its divisors is an integer number (1999200).

Almost surely, 2^28536833 is an apocalyptic number.

It is an amenable number.

28536833 is a deficient number, since it is larger than the sum of its proper divisors (3450367).

28536833 is an equidigital number, since it uses as much as digits as its factorization.

28536833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 463 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 28536833 is about 5341.9877386606. The cubic root of 28536833 is about 305.5872694698.

The spelling of 28536833 in words is "twenty-eight million, five hundred thirty-six thousand, eight hundred thirty-three".