28863683 has 2 divisors, whose sum is σ = 28863684. Its totient is φ = 28863682.

The previous prime is 28863673. The next prime is 28863719. The reversal of 28863683 is 38636882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28863683 - 2⁶ = 28863619 is a prime.

It is a super-4 number, since 4×28863683⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (28863673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14431841 + 14431842.

It is an arithmetic number, because the mean of its divisors is an integer number (14431842).

Almost surely, 2^28863683 is an apocalyptic number.

28863683 is a deficient number, since it is larger than the sum of its proper divisors (1).

28863683 is an equidigital number, since it uses as much as digits as its factorization.

28863683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 28863683 is about 5372.4931828714. The cubic root of 28863683 is about 306.7495366516.

The spelling of 28863683 in words is "twenty-eight million, eight hundred sixty-three thousand, six hundred eighty-three".