28847163 has 4 divisors (see below), whose sum is σ = 38462888. Its totient is φ = 19231440.

The previous prime is 28847153. The next prime is 28847173. The reversal of 28847163 is 36174882.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28847153) and next prime (28847173).

It is not a de Polignac number, because 28847163 - 2⁶ = 28847099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28847123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4807858 + ... + 4807863.

It is an arithmetic number, because the mean of its divisors is an integer number (9615722).

Almost surely, 2^28847163 is an apocalyptic number.

28847163 is a deficient number, since it is larger than the sum of its proper divisors (9615725).

28847163 is an equidigital number, since it uses as much as digits as its factorization.

28847163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615724.

The product of its digits is 64512, while the sum is 39.

The square root of 28847163 is about 5370.9555015844. The cubic root of 28847163 is about 306.6910032409.

The spelling of 28847163 in words is "twenty-eight million, eight hundred forty-seven thousand, one hundred sixty-three".