28134833 has 2 divisors, whose sum is σ = 28134834. Its totient is φ = 28134832.

The previous prime is 28134829. The next prime is 28134859. The reversal of 28134833 is 33843182.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22972849 + 5161984 = 4793^2 + 2272^2 .

It is a cyclic number.

It is not a de Polignac number, because 28134833 - 2² = 28134829 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28134833.

It is not a weakly prime, because it can be changed into another prime (28134803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14067416 + 14067417.

It is an arithmetic number, because the mean of its divisors is an integer number (14067417).

Almost surely, 2^28134833 is an apocalyptic number.

It is an amenable number.

28134833 is a deficient number, since it is larger than the sum of its proper divisors (1).

28134833 is an equidigital number, since it uses as much as digits as its factorization.

28134833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 28134833 is about 5304.2278420143. The cubic root of 28134833 is about 304.1455364150.

The spelling of 28134833 in words is "twenty-eight million, one hundred thirty-four thousand, eight hundred thirty-three".