28608011 has 2 divisors, whose sum is σ = 28608012. Its totient is φ = 28608010.

The previous prime is 28607987. The next prime is 28608023. The reversal of 28608011 is 11080682.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28608011 is a prime.

It is a super-2 number, since 2×28608011² = 1636836586752242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28608211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14304005 + 14304006.

It is an arithmetic number, because the mean of its divisors is an integer number (14304006).

Almost surely, 2^28608011 is an apocalyptic number.

28608011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28608011 is an equidigital number, since it uses as much as digits as its factorization.

28608011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 28608011 is about 5348.6457164408. The cubic root of 28608011 is about 305.8411288880.

Adding to 28608011 its reverse (11080682), we get a palindrome (39688693).

The spelling of 28608011 in words is "twenty-eight million, six hundred eight thousand, eleven".