28567017 has 12 divisors (see below), whose sum is σ = 41829684. Its totient is φ = 18783360.

The previous prime is 28566983. The next prime is 28567031. The reversal of 28567017 is 71076582.

It can be written as a sum of positive squares in 2 ways, for example, as 18224361 + 10342656 = 4269^2 + 3216^2 .

It is not a de Polignac number, because 28567017 - 2⁸ = 28566761 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28567057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21084 + ... + 22397.

It is an arithmetic number, because the mean of its divisors is an integer number (3485807).

Almost surely, 2^28567017 is an apocalyptic number.

It is an amenable number.

28567017 is a deficient number, since it is larger than the sum of its proper divisors (13262667).

28567017 is a wasteful number, since it uses less digits than its factorization.

28567017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43560 (or 43557 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 28567017 is about 5344.8121575973. The cubic root of 28567017 is about 305.6949735023.

The spelling of 28567017 in words is "twenty-eight million, five hundred sixty-seven thousand, seventeen".