28701163 has 4 divisors (see below), whose sum is σ = 28728288. Its totient is φ = 28674040.

The previous prime is 28701157. The next prime is 28701187. The reversal of 28701163 is 36110782.

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 28701163 - 2⁵ = 28701131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28701863) 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 3 ways as a sum of consecutive naturals, for example, 11908 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (7182072).

Almost surely, 2^28701163 is an apocalyptic number.

28701163 is a deficient number, since it is larger than the sum of its proper divisors (27125).

28701163 is a wasteful number, since it uses less digits than its factorization.

28701163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27124.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 28701163 is about 5357.3466380289. The cubic root of 28701163 is about 306.1727241928.

The spelling of 28701163 in words is "twenty-eight million, seven hundred one thousand, one hundred sixty-three".