28679593 has 2 divisors, whose sum is σ = 28679594. Its totient is φ = 28679592.

The previous prime is 28679587. The next prime is 28679611. The reversal of 28679593 is 39597682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24235929 + 4443664 = 4923^2 + 2108^2 .

It is a cyclic number.

It is not a de Polignac number, because 28679593 - 2¹⁷ = 28548521 is a prime.

It is not a weakly prime, because it can be changed into another prime (28679543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14339796 + 14339797.

It is an arithmetic number, because the mean of its divisors is an integer number (14339797).

Almost surely, 2^28679593 is an apocalyptic number.

It is an amenable number.

28679593 is a deficient number, since it is larger than the sum of its proper divisors (1).

28679593 is an equidigital number, since it uses as much as digits as its factorization.

28679593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 28679593 is about 5355.3331362297. Note that the first 3 decimals coincide. The cubic root of 28679593 is about 306.0960048769.

The spelling of 28679593 in words is "twenty-eight million, six hundred seventy-nine thousand, five hundred ninety-three".