28323573 has 8 divisors (see below), whose sum is σ = 37800000. Its totient is φ = 18864768.

The previous prime is 28323551. The next prime is 28323577. The reversal of 28323573 is 37532382.

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

It is not a de Polignac number, because 28323573 - 2¹⁰ = 28322549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28323577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 7526.

It is an arithmetic number, because the mean of its divisors is an integer number (4725000).

Almost surely, 2^28323573 is an apocalyptic number.

It is an amenable number.

28323573 is a deficient number, since it is larger than the sum of its proper divisors (9476427).

28323573 is a wasteful number, since it uses less digits than its factorization.

28323573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

The product of its digits is 30240, while the sum is 33.

The square root of 28323573 is about 5321.9895715794. The cubic root of 28323573 is about 304.8241322403.

The spelling of 28323573 in words is "twenty-eight million, three hundred twenty-three thousand, five hundred seventy-three".