28000303 has 8 divisors (see below), whose sum is σ = 28318208. Its totient is φ = 27684504.

The previous prime is 28000237. The next prime is 28000321. The reversal of 28000303 is 30300082.

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 28000303 - 2⁹ = 27999791 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 (28000363) 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, 45826 + ... + 46432.

It is an arithmetic number, because the mean of its divisors is an integer number (3539776).

Almost surely, 2^28000303 is an apocalyptic number.

28000303 is a deficient number, since it is larger than the sum of its proper divisors (317905).

28000303 is a wasteful number, since it uses less digits than its factorization.

28000303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 28000303 is about 5291.5312528606. The cubic root of 28000303 is about 303.6599925246.

Adding to 28000303 its reverse (30300082), we get a palindrome (58300385).

The spelling of 28000303 in words is "twenty-eight million, three hundred three", and thus it is an aban number.