28577466 has 12 divisors (see below), whose sum is σ = 61917882. Its totient is φ = 9525816.

The previous prime is 28577407. The next prime is 28577473. The reversal of 28577466 is 66477582.

It can be written as a sum of positive squares in only one way, i.e., 28355625 + 221841 = 5325^2 + 471^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 in 5 ways as a sum of consecutive naturals, for example, 793801 + ... + 793836.

Almost surely, 2^28577466 is an apocalyptic number.

28577466 is an abundant number, since it is smaller than the sum of its proper divisors (33340416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28577466 is a wasteful number, since it uses less digits than its factorization.

28577466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587645 (or 1587642 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 28577466 is about 5345.7895581476. The cubic root of 28577466 is about 305.7322404596.

The spelling of 28577466 in words is "twenty-eight million, five hundred seventy-seven thousand, four hundred sixty-six".