28008373 has 2 divisors, whose sum is σ = 28008374. Its totient is φ = 28008372.

The previous prime is 28008359. The next prime is 28008391. The reversal of 28008373 is 37380082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16016004 + 11992369 = 4002^2 + 3463^2 .

It is a cyclic number.

It is not a de Polignac number, because 28008373 - 2¹⁷ = 27877301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28008073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14004186 + 14004187.

It is an arithmetic number, because the mean of its divisors is an integer number (14004187).

Almost surely, 2^28008373 is an apocalyptic number.

It is an amenable number.

28008373 is a deficient number, since it is larger than the sum of its proper divisors (1).

28008373 is an equidigital number, since it uses as much as digits as its factorization.

28008373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28008373 is about 5292.2937371238. The cubic root of 28008373 is about 303.6891624560.

The spelling of 28008373 in words is "twenty-eight million, eight thousand, three hundred seventy-three".