28316873 has 8 divisors (see below), whose sum is σ = 31012800. Its totient is φ = 25694928.

The previous prime is 28316851. The next prime is 28316903. The reversal of 28316873 is 37861382.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28316873 - 2¹⁸ = 28054729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28316173) 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, 17693 + ... + 19226.

It is an arithmetic number, because the mean of its divisors is an integer number (3876600).

Almost surely, 2^28316873 is an apocalyptic number.

It is an amenable number.

28316873 is a deficient number, since it is larger than the sum of its proper divisors (2695927).

28316873 is a wasteful number, since it uses less digits than its factorization.

28316873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36991.

The product of its digits is 48384, while the sum is 38.

The square root of 28316873 is about 5321.3600705083. The cubic root of 28316873 is about 304.8000947511.

The spelling of 28316873 in words is "twenty-eight million, three hundred sixteen thousand, eight hundred seventy-three".