28803079 has 4 divisors (see below), whose sum is σ = 29088360. Its totient is φ = 28517800.

The previous prime is 28803059. The next prime is 28803091. The reversal of 28803079 is 97030882.

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

It is a cyclic number.

It is not a de Polignac number, because 28803079 - 2⁹ = 28802567 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 (28803029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142489 + ... + 142690.

It is an arithmetic number, because the mean of its divisors is an integer number (7272090).

Almost surely, 2^28803079 is an apocalyptic number.

28803079 is a deficient number, since it is larger than the sum of its proper divisors (285281).

28803079 is a wasteful number, since it uses less digits than its factorization.

28803079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285280.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 28803079 is about 5366.8500072203. The cubic root of 28803079 is about 306.5346960253.

The spelling of 28803079 in words is "twenty-eight million, eight hundred three thousand, seventy-nine".