28566793 has 2 divisors, whose sum is σ = 28566794. Its totient is φ = 28566792.

The previous prime is 28566767. The next prime is 28566799. The reversal of 28566793 is 39766582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27426169 + 1140624 = 5237^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 28566793 - 2⁵ = 28566761 is a prime.

It is not a weakly prime, because it can be changed into another prime (28566799) 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, 14283396 + 14283397.

It is an arithmetic number, because the mean of its divisors is an integer number (14283397).

Almost surely, 2^28566793 is an apocalyptic number.

It is an amenable number.

28566793 is a deficient number, since it is larger than the sum of its proper divisors (1).

28566793 is an equidigital number, since it uses as much as digits as its factorization.

28566793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 28566793 is about 5344.7912026570. The cubic root of 28566793 is about 305.6941744940.

The spelling of 28566793 in words is "twenty-eight million, five hundred sixty-six thousand, seven hundred ninety-three".