28253283 has 8 divisors (see below), whose sum is σ = 38125248. Its totient is φ = 18608424.

The previous prime is 28253273. The next prime is 28253327. The reversal of 28253283 is 38235282.

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

It is not a de Polignac number, because 28253283 - 2⁹ = 28252771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28253233) 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, 56485 + ... + 56982.

It is an arithmetic number, because the mean of its divisors is an integer number (4765656).

Almost surely, 2^28253283 is an apocalyptic number.

28253283 is a deficient number, since it is larger than the sum of its proper divisors (9871965).

28253283 is a wasteful number, since it uses less digits than its factorization.

28253283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113553.

The product of its digits is 23040, while the sum is 33.

The square root of 28253283 is about 5315.3817360562. The cubic root of 28253283 is about 304.5717648695.

The spelling of 28253283 in words is "twenty-eight million, two hundred fifty-three thousand, two hundred eighty-three".