28235033 has 8 divisors (see below), whose sum is σ = 29268360. Its totient is φ = 27216000.

The previous prime is 28235029. The next prime is 28235059. The reversal of 28235033 is 33053282.

It can be written as a sum of positive squares in 4 ways, for example, as 11235904 + 16999129 = 3352^2 + 4123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28235033 - 2² = 28235029 is a prime.

It is a super-2 number, since 2×28235033² = 1594434177022178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28234993 and 28235011.

It is not an unprimeable number, because it can be changed into a prime (28235003) 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, 533 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (3658545).

Almost surely, 2^28235033 is an apocalyptic number.

It is an amenable number.

28235033 is a deficient number, since it is larger than the sum of its proper divisors (1033327).

28235033 is a wasteful number, since it uses less digits than its factorization.

28235033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 28235033 is about 5313.6647429058. The cubic root of 28235033 is about 304.5061721152.

The spelling of 28235033 in words is "twenty-eight million, two hundred thirty-five thousand, thirty-three".