28633853 has 2 divisors, whose sum is σ = 28633854. Its totient is φ = 28633852.

The previous prime is 28633823. The next prime is 28633877. The reversal of 28633853 is 35833682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24780484 + 3853369 = 4978^2 + 1963^2 .

It is a cyclic number.

It is not a de Polignac number, because 28633853 - 2¹⁸ = 28371709 is a prime.

It is equal to p_1778429 and since 28633853 and 1778429 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28633823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14316926 + 14316927.

It is an arithmetic number, because the mean of its divisors is an integer number (14316927).

Almost surely, 2^28633853 is an apocalyptic number.

It is an amenable number.

28633853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28633853 is an equidigital number, since it uses as much as digits as its factorization.

28633853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 28633853 is about 5351.0609228451. The cubic root of 28633853 is about 305.9331913043.

The spelling of 28633853 in words is "twenty-eight million, six hundred thirty-three thousand, eight hundred fifty-three".