28338317 has 8 divisors (see below), whose sum is σ = 33048000. Its totient is φ = 24289692.

The previous prime is 28338311. The next prime is 28338319. The reversal of 28338317 is 71383382.

It is not a de Polignac number, because 28338317 - 2¹⁰ = 28337293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28338311) 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 in 7 ways as a sum of consecutive naturals, for example, 40967 + ... + 41652.

It is an arithmetic number, because the mean of its divisors is an integer number (4131000).

Almost surely, 2^28338317 is an apocalyptic number.

It is an amenable number.

28338317 is a deficient number, since it is larger than the sum of its proper divisors (4709683).

28338317 is an frugal number, since it uses more digits than its factorization.

28338317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82640 (or 82626 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 28338317 is about 5323.3745876089. The cubic root of 28338317 is about 304.8770157211.

The spelling of 28338317 in words is "twenty-eight million, three hundred thirty-eight thousand, three hundred seventeen".