28604033 has 2 divisors, whose sum is σ = 28604034. Its totient is φ = 28604032.

The previous prime is 28604011. The next prime is 28604077. The reversal of 28604033 is 33040682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26553409 + 2050624 = 5153^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 28604033 - 2¹² = 28599937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28603993 and 28604011.

It is not a weakly prime, because it can be changed into another prime (28604833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14302016 + 14302017.

It is an arithmetic number, because the mean of its divisors is an integer number (14302017).

Almost surely, 2^28604033 is an apocalyptic number.

It is an amenable number.

28604033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28604033 is an equidigital number, since it uses as much as digits as its factorization.

28604033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 28604033 is about 5348.2738336776. The cubic root of 28604033 is about 305.8269522947.

The spelling of 28604033 in words is "twenty-eight million, six hundred four thousand, thirty-three".