28573143 has 8 divisors (see below), whose sum is σ = 38146800. Its totient is φ = 19024128.

The previous prime is 28573123. The next prime is 28573147. The reversal of 28573143 is 34137582.

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

It is not a de Polignac number, because 28573143 - 2⁶ = 28573079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3258 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (4768350).

Almost surely, 2^28573143 is an apocalyptic number.

28573143 is a deficient number, since it is larger than the sum of its proper divisors (9573657).

28573143 is a wasteful number, since it uses less digits than its factorization.

28573143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12321.

The product of its digits is 20160, while the sum is 33.

The square root of 28573143 is about 5345.3852059510. The cubic root of 28573143 is about 305.7168233343.

The spelling of 28573143 in words is "twenty-eight million, five hundred seventy-three thousand, one hundred forty-three".