28334329 has 3 divisors (see below), whose sum is σ = 28339653. Its totient is φ = 28329006.

The previous prime is 28334311. The next prime is 28334333. The reversal of 28334329 is 92343382.

The square root of 28334329 is 5323.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 28334329 - 2⁹ = 28333817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28334294 and 28334303.

It is not an unprimeable number, because it can be changed into a prime (28334429) 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 in 2 ways as a sum of consecutive naturals, for example, 2662 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (9446551).

Almost surely, 2^28334329 is an apocalyptic number.

28334329 is the 5323-rd square number.

28334329 is the 2662-nd centered octagonal number.

It is an amenable number.

28334329 is a deficient number, since it is larger than the sum of its proper divisors (5324).

28334329 is an frugal number, since it uses more digits than its factorization.

28334329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10646 (or 5323 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The cubic root of 28334329 is about 304.8627134535.

The spelling of 28334329 in words is "twenty-eight million, three hundred thirty-four thousand, three hundred twenty-nine".