28275303 has 24 divisors (see below), whose sum is σ = 45767808. Its totient is φ = 15452976.

The previous prime is 28275239. The next prime is 28275307. The reversal of 28275303 is 30357282.

It is not a de Polignac number, because 28275303 - 2⁶ = 28275239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28275307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 801 + ... + 7562.

It is an arithmetic number, because the mean of its divisors is an integer number (1906992).

Almost surely, 2^28275303 is an apocalyptic number.

28275303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28275303 is a deficient number, since it is larger than the sum of its proper divisors (17492505).

28275303 is a wasteful number, since it uses less digits than its factorization.

28275303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8403 (or 8396 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 28275303 is about 5317.4526796202. The cubic root of 28275303 is about 304.6508698791.

The spelling of 28275303 in words is "twenty-eight million, two hundred seventy-five thousand, three hundred three".