28064633 has 2 divisors, whose sum is σ = 28064634. Its totient is φ = 28064632.

The previous prime is 28064627. The next prime is 28064639. The reversal of 28064633 is 33646082.

It is a balanced prime because it is at equal distance from previous prime (28064627) and next prime (28064639).

It can be written as a sum of positive squares in only one way, i.e., 18003049 + 10061584 = 4243^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 28064633 - 2¹² = 28060537 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 28064633.

It is not a weakly prime, because it can be changed into another prime (28064639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14032316 + 14032317.

It is an arithmetic number, because the mean of its divisors is an integer number (14032317).

Almost surely, 2^28064633 is an apocalyptic number.

It is an amenable number.

28064633 is a deficient number, since it is larger than the sum of its proper divisors (1).

28064633 is an equidigital number, since it uses as much as digits as its factorization.

28064633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 28064633 is about 5297.6063462662. The cubic root of 28064633 is about 303.8923650864.

The spelling of 28064633 in words is "twenty-eight million, sixty-four thousand, six hundred thirty-three".