28604163 has 8 divisors (see below), whose sum is σ = 43587328. Its totient is φ = 16345224.

The previous prime is 28604129. The next prime is 28604167. The reversal of 28604163 is 36140682.

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

It is not a de Polignac number, because 28604163 - 2¹² = 28600067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28604163.

It is not an unprimeable number, because it can be changed into a prime (28604167) 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 7 ways as a sum of consecutive naturals, for example, 681031 + ... + 681072.

It is an arithmetic number, because the mean of its divisors is an integer number (5448416).

Almost surely, 2^28604163 is an apocalyptic number.

28604163 is a deficient number, since it is larger than the sum of its proper divisors (14983165).

28604163 is a wasteful number, since it uses less digits than its factorization.

28604163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362113.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28604163 is about 5348.2859871177. The cubic root of 28604163 is about 305.8274156029.

The spelling of 28604163 in words is "twenty-eight million, six hundred four thousand, one hundred sixty-three".