28179113 has 2 divisors, whose sum is σ = 28179114. Its totient is φ = 28179112.

The previous prime is 28179059. The next prime is 28179121. The reversal of 28179113 is 31197182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23697424 + 4481689 = 4868^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 28179113 - 2¹⁰ = 28178089 is a prime.

It is equal to p_1751882 and since 28179113 and 1751882 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28179113.

It is not a weakly prime, because it can be changed into another prime (28179313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14089556 + 14089557.

It is an arithmetic number, because the mean of its divisors is an integer number (14089557).

Almost surely, 2^28179113 is an apocalyptic number.

It is an amenable number.

28179113 is a deficient number, since it is larger than the sum of its proper divisors (1).

28179113 is an equidigital number, since it uses as much as digits as its factorization.

28179113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 32.

The square root of 28179113 is about 5308.4002298244. The cubic root of 28179113 is about 304.3050125730.

The spelling of 28179113 in words is "twenty-eight million, one hundred seventy-nine thousand, one hundred thirteen".