28564083 has 40 divisors (see below), whose sum is σ = 44721600. Its totient is φ = 18153072.

The previous prime is 28564079. The next prime is 28564099. The reversal of 28564083 is 38046582.

28564083 is a `hidden beast` number, since 2 + 8 + 5 + 640 + 8 + 3 = 666.

It is not a de Polignac number, because 28564083 - 2² = 28564079 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28564073) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 205428 + ... + 205566.

It is an arithmetic number, because the mean of its divisors is an integer number (1118040).

Almost surely, 2^28564083 is an apocalyptic number.

28564083 is a deficient number, since it is larger than the sum of its proper divisors (16157517).

28564083 is a wasteful number, since it uses less digits than its factorization.

28564083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28564083 is about 5344.5376787894. The cubic root of 28564083 is about 305.6845075891.

The spelling of 28564083 in words is "twenty-eight million, five hundred sixty-four thousand, eighty-three".