28566097 has 8 divisors (see below), whose sum is σ = 33700352. Its totient is φ = 23695200.

The previous prime is 28566079. The next prime is 28566107. The reversal of 28566097 is 79066582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28566097 - 2¹⁹ = 28041809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28566017) 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 7 ways as a sum of consecutive naturals, for example, 65604 + ... + 66037.

It is an arithmetic number, because the mean of its divisors is an integer number (4212544).

Almost surely, 2^28566097 is an apocalyptic number.

It is an amenable number.

28566097 is a deficient number, since it is larger than the sum of its proper divisors (5134255).

28566097 is a wasteful number, since it uses less digits than its factorization.

28566097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131679.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 28566097 is about 5344.7260921398. The cubic root of 28566097 is about 305.6916918343.

The spelling of 28566097 in words is "twenty-eight million, five hundred sixty-six thousand, ninety-seven".