28091883 has 8 divisors (see below), whose sum is σ = 37484496. Its totient is φ = 18713600.

The previous prime is 28091881. The next prime is 28091893. The reversal of 28091883 is 38819082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28091883 - 2¹ = 28091881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28091881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443 + ... + 7883.

It is an arithmetic number, because the mean of its divisors is an integer number (4685562).

Almost surely, 2^28091883 is an apocalyptic number.

28091883 is a deficient number, since it is larger than the sum of its proper divisors (9392613).

28091883 is a wasteful number, since it uses less digits than its factorization.

28091883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 28091883 is about 5300.1776385325. The cubic root of 28091883 is about 303.9906903601.

The spelling of 28091883 in words is "twenty-eight million, ninety-one thousand, eight hundred eighty-three".