28201833 has 72 divisors (see below), whose sum is σ = 49795200. Its totient is φ = 15301440.

The previous prime is 28201819. The next prime is 28201837. The reversal of 28201833 is 33810282.

It is not a de Polignac number, because 28201833 - 2¹⁸ = 27939689 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28201797 and 28201806.

It is not an unprimeable number, because it can be changed into a prime (28201837) 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, 600016 + ... + 600062.

It is an arithmetic number, because the mean of its divisors is an integer number (691600).

Almost surely, 2^28201833 is an apocalyptic number.

It is an amenable number.

28201833 is a deficient number, since it is larger than the sum of its proper divisors (21593367).

28201833 is a wasteful number, since it uses less digits than its factorization.

28201833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28201833 is about 5310.5398030709. The cubic root of 28201833 is about 304.3867746992.

The spelling of 28201833 in words is "twenty-eight million, two hundred one thousand, eight hundred thirty-three".