28574573 has 4 divisors (see below), whose sum is σ = 28623840. Its totient is φ = 28525308.

The previous prime is 28574563. The next prime is 28574587. The reversal of 28574573 is 37547582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37547582 = 2 ⋅18773791.

It is a cyclic number.

It is not a de Polignac number, because 28574573 - 2²⁰ = 27525997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28574573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23753 + ... + 24926.

It is an arithmetic number, because the mean of its divisors is an integer number (7155960).

Almost surely, 2^28574573 is an apocalyptic number.

It is an amenable number.

28574573 is a deficient number, since it is larger than the sum of its proper divisors (49267).

28574573 is an equidigital number, since it uses as much as digits as its factorization.

28574573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49266.

The product of its digits is 235200, while the sum is 41.

The square root of 28574573 is about 5345.5189645160. The cubic root of 28574573 is about 305.7219233188.

The spelling of 28574573 in words is "twenty-eight million, five hundred seventy-four thousand, five hundred seventy-three".