28166596 has 6 divisors (see below), whose sum is σ = 49291550. Its totient is φ = 14083296.

The previous prime is 28166561. The next prime is 28166629. The reversal of 28166596 is 69566182.

It can be written as a sum of positive squares in only one way, i.e., 24364096 + 3802500 = 4936^2 + 1950^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3520821 + ... + 3520828.

Almost surely, 2^28166596 is an apocalyptic number.

It is an amenable number.

28166596 is a deficient number, since it is larger than the sum of its proper divisors (21124954).

28166596 is a wasteful number, since it uses less digits than its factorization.

28166596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041653 (or 7041651 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 28166596 is about 5307.2211184385. The cubic root of 28166596 is about 304.2599490542.

The spelling of 28166596 in words is "twenty-eight million, one hundred sixty-six thousand, five hundred ninety-six".