28795863 has 8 divisors (see below), whose sum is σ = 38967808. Its totient is φ = 18910584.

The previous prime is 28795859. The next prime is 28795867. The reversal of 28795863 is 36859782.

It is an interprime number because it is at equal distance from previous prime (28795859) and next prime (28795867).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28795863 - 2² = 28795859 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 (28795867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71431 + ... + 71832.

It is an arithmetic number, because the mean of its divisors is an integer number (4870976).

Almost surely, 2^28795863 is an apocalyptic number.

28795863 is a deficient number, since it is larger than the sum of its proper divisors (10171945).

28795863 is a wasteful number, since it uses less digits than its factorization.

28795863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143333.

The product of its digits is 725760, while the sum is 48.

The square root of 28795863 is about 5366.1776899391. The cubic root of 28795863 is about 306.5090953003.

The spelling of 28795863 in words is "twenty-eight million, seven hundred ninety-five thousand, eight hundred sixty-three".