28366803 has 12 divisors (see below), whose sum is σ = 41846688. Its totient is φ = 18508560.

The previous prime is 28366801. The next prime is 28366817. The reversal of 28366803 is 30866382.

It is not a de Polignac number, because 28366803 - 2¹ = 28366801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28366801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33108 + ... + 33953.

It is an arithmetic number, because the mean of its divisors is an integer number (3487224).

Almost surely, 2^28366803 is an apocalyptic number.

28366803 is a deficient number, since it is larger than the sum of its proper divisors (13479885).

28366803 is a wasteful number, since it uses less digits than its factorization.

28366803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67114 (or 67111 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 28366803 is about 5326.0494740473. The cubic root of 28366803 is about 304.9791367974.

The spelling of 28366803 in words is "twenty-eight million, three hundred sixty-six thousand, eight hundred three".