28801303 has 4 divisors (see below), whose sum is σ = 28888648. Its totient is φ = 28713960.

The previous prime is 28801243. The next prime is 28801307. The reversal of 28801303 is 30310882.

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 28801303 - 2²¹ = 26704151 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 (28801307) 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, 43176 + ... + 43837.

It is an arithmetic number, because the mean of its divisors is an integer number (7222162).

Almost surely, 2^28801303 is an apocalyptic number.

28801303 is a deficient number, since it is larger than the sum of its proper divisors (87345).

28801303 is an equidigital number, since it uses as much as digits as its factorization.

28801303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87344.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 28801303 is about 5366.6845444837. The cubic root of 28801303 is about 306.5283955784.

The spelling of 28801303 in words is "twenty-eight million, eight hundred one thousand, three hundred three".