28805433 has 4 divisors (see below), whose sum is σ = 38407248. Its totient is φ = 19203620.

The previous prime is 28805431. The next prime is 28805437. The reversal of 28805433 is 33450882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28805433 - 2¹ = 28805431 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28805394 and 28805403.

It is not an unprimeable number, because it can be changed into a prime (28805431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4800903 + ... + 4800908.

It is an arithmetic number, because the mean of its divisors is an integer number (9601812).

Almost surely, 2^28805433 is an apocalyptic number.

It is an amenable number.

28805433 is a deficient number, since it is larger than the sum of its proper divisors (9601815).

28805433 is an equidigital number, since it uses as much as digits as its factorization.

28805433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9601814.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 28805433 is about 5367.0693120175. The cubic root of 28805433 is about 306.5430465564.

The spelling of 28805433 in words is "twenty-eight million, eight hundred five thousand, four hundred thirty-three".