28344011 has 2 divisors, whose sum is σ = 28344012. Its totient is φ = 28344010.

The previous prime is 28343999. The next prime is 28344031. The reversal of 28344011 is 11044382.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28344011 is a prime.

It is not a weakly prime, because it can be changed into another prime (28344031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14172005 + 14172006.

It is an arithmetic number, because the mean of its divisors is an integer number (14172006).

Almost surely, 2^28344011 is an apocalyptic number.

28344011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28344011 is an equidigital number, since it uses as much as digits as its factorization.

28344011 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 23.

The square root of 28344011 is about 5323.9093718808. The cubic root of 28344011 is about 304.8974339352.

Adding to 28344011 its reverse (11044382), we get a palindrome (39388393).

The spelling of 28344011 in words is "twenty-eight million, three hundred forty-four thousand, eleven".