28713183 has 4 divisors (see below), whose sum is σ = 38284248. Its totient is φ = 19142120.

The previous prime is 28713173. The next prime is 28713197. The reversal of 28713183 is 38131782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28713183 - 2⁸ = 28712927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28713133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785528 + ... + 4785533.

It is an arithmetic number, because the mean of its divisors is an integer number (9571062).

Almost surely, 2^28713183 is an apocalyptic number.

28713183 is a deficient number, since it is larger than the sum of its proper divisors (9571065).

28713183 is an equidigital number, since it uses as much as digits as its factorization.

28713183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571064.

The product of its digits is 8064, while the sum is 33.

The square root of 28713183 is about 5358.4683445925. The cubic root of 28713183 is about 306.2154597725.

The spelling of 28713183 in words is "twenty-eight million, seven hundred thirteen thousand, one hundred eighty-three".