28334311 has 2 divisors, whose sum is σ = 28334312. Its totient is φ = 28334310.

The previous prime is 28334281. The next prime is 28334333. The reversal of 28334311 is 11343382.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28334311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28334351) 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, 14167155 + 14167156.

It is an arithmetic number, because the mean of its divisors is an integer number (14167156).

Almost surely, 2^28334311 is an apocalyptic number.

28334311 is a deficient number, since it is larger than the sum of its proper divisors (1).

28334311 is an equidigital number, since it uses as much as digits as its factorization.

28334311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 28334311 is about 5322.9983092239. The cubic root of 28334311 is about 304.8626488966.

Adding to 28334311 its reverse (11343382), we get a palindrome (39677693).

The spelling of 28334311 in words is "twenty-eight million, three hundred thirty-four thousand, three hundred eleven".