28354433 has 2 divisors, whose sum is σ = 28354434. Its totient is φ = 28354432.

The previous prime is 28354427. The next prime is 28354439. The reversal of 28354433 is 33445382.

It is a balanced prime because it is at equal distance from previous prime (28354427) and next prime (28354439).

It can be written as a sum of positive squares in only one way, i.e., 17707264 + 10647169 = 4208^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 28354433 - 2⁸ = 28354177 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28354433.

It is not a weakly prime, because it can be changed into another prime (28354439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14177216 + 14177217.

It is an arithmetic number, because the mean of its divisors is an integer number (14177217).

Almost surely, 2^28354433 is an apocalyptic number.

It is an amenable number.

28354433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28354433 is an equidigital number, since it uses as much as digits as its factorization.

28354433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 32.

The square root of 28354433 is about 5324.8880739411. Note that the first 3 decimals coincide. The cubic root of 28354433 is about 304.9347992851.

The spelling of 28354433 in words is "twenty-eight million, three hundred fifty-four thousand, four hundred thirty-three".