28848661 has 2 divisors, whose sum is σ = 28848662. Its totient is φ = 28848660.

The previous prime is 28848607. The next prime is 28848679. The reversal of 28848661 is 16684882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28826161 + 22500 = 5369^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 28848661 - 2¹⁵ = 28815893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28848691) 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, 14424330 + 14424331.

It is an arithmetic number, because the mean of its divisors is an integer number (14424331).

Almost surely, 2^28848661 is an apocalyptic number.

It is an amenable number.

28848661 is a deficient number, since it is larger than the sum of its proper divisors (1).

28848661 is an equidigital number, since it uses as much as digits as its factorization.

28848661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 43.

The square root of 28848661 is about 5371.0949535453. The cubic root of 28848661 is about 306.6963118527.

The spelling of 28848661 in words is "twenty-eight million, eight hundred forty-eight thousand, six hundred sixty-one".