28854983 has 4 divisors (see below), whose sum is σ = 28865760. Its totient is φ = 28844208.

The previous prime is 28854961. The next prime is 28854989. The reversal of 28854983 is 38945882.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 38945882 = 2 ⋅19472941.

It is a cyclic number.

It is not a de Polignac number, because 28854983 - 2¹⁰ = 28853959 is a prime.

It is a super-2 number, since 2×28854983² = 1665220087860578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28854989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (7216440).

Almost surely, 2^28854983 is an apocalyptic number.

28854983 is a deficient number, since it is larger than the sum of its proper divisors (10777).

28854983 is an equidigital number, since it uses as much as digits as its factorization.

28854983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10776.

The product of its digits is 552960, while the sum is 47.

The square root of 28854983 is about 5371.6834419016. The cubic root of 28854983 is about 306.7187137297.

The spelling of 28854983 in words is "twenty-eight million, eight hundred fifty-four thousand, nine hundred eighty-three".