28645803 has 12 divisors (see below), whose sum is σ = 41433288. Its totient is φ = 19071360.

The previous prime is 28645801. The next prime is 28645817. The reversal of 28645803 is 30854682.

28645803 is a `hidden beast` number, since 2 + 8 + 645 + 8 + 0 + 3 = 666.

It is not a de Polignac number, because 28645803 - 2¹ = 28645801 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28645801) 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, 6843 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (3452774).

Almost surely, 2^28645803 is an apocalyptic number.

28645803 is a deficient number, since it is larger than the sum of its proper divisors (12787485).

28645803 is a wasteful number, since it uses less digits than its factorization.

28645803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28645803 is about 5352.1774073736. The cubic root of 28645803 is about 305.9757445852.

The spelling of 28645803 in words is "twenty-eight million, six hundred forty-five thousand, eight hundred three".