28566983 has 2 divisors, whose sum is σ = 28566984. Its totient is φ = 28566982.

The previous prime is 28566973. The next prime is 28567031. The reversal of 28566983 is 38966582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28566983 - 2¹⁸ = 28304839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28566973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283491 + 14283492.

It is an arithmetic number, because the mean of its divisors is an integer number (14283492).

Almost surely, 2^28566983 is an apocalyptic number.

28566983 is a deficient number, since it is larger than the sum of its proper divisors (1).

28566983 is an equidigital number, since it uses as much as digits as its factorization.

28566983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 28566983 is about 5344.8089769420. The cubic root of 28566983 is about 305.6948522245.

The spelling of 28566983 in words is "twenty-eight million, five hundred sixty-six thousand, nine hundred eighty-three".