28832773 has 4 divisors (see below), whose sum is σ = 29118348. Its totient is φ = 28547200.

The previous prime is 28832743. The next prime is 28832779. The reversal of 28832773 is 37723882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26853124 + 1979649 = 5182^2 + 1407^2 .

It is a cyclic number.

It is not a de Polignac number, because 28832773 - 2¹³ = 28824581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28832779) 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, 142636 + ... + 142837.

It is an arithmetic number, because the mean of its divisors is an integer number (7279587).

Almost surely, 2^28832773 is an apocalyptic number.

It is an amenable number.

28832773 is a deficient number, since it is larger than the sum of its proper divisors (285575).

28832773 is a wasteful number, since it uses less digits than its factorization.

28832773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285574.

The product of its digits is 112896, while the sum is 40.

The square root of 28832773 is about 5369.6157218185. The cubic root of 28832773 is about 306.6399985999.

The spelling of 28832773 in words is "twenty-eight million, eight hundred thirty-two thousand, seven hundred seventy-three".