28820183 has 6 divisors (see below), whose sum is σ = 33525576. Its totient is φ = 24702972.

The previous prime is 28820179. The next prime is 28820221. The reversal of 28820183 is 38102882.

It is not a de Polignac number, because 28820183 - 2² = 28820179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28820383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294035 + ... + 294132.

It is an arithmetic number, because the mean of its divisors is an integer number (5587596).

Almost surely, 2^28820183 is an apocalyptic number.

28820183 is a deficient number, since it is larger than the sum of its proper divisors (4705393).

28820183 is an equidigital number, since it uses as much as digits as its factorization.

28820183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588181 (or 588174 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 28820183 is about 5368.4432566620. The cubic root of 28820183 is about 306.5953600488.

The spelling of 28820183 in words is "twenty-eight million, eight hundred twenty thousand, one hundred eighty-three".