28652185 has 8 divisors (see below), whose sum is σ = 34723656. Its totient is φ = 22694400.

The previous prime is 28652179. The next prime is 28652207. The reversal of 28652185 is 58125682.

It can be written as a sum of positive squares in 4 ways, for example, as 10784656 + 17867529 = 3284^2 + 4227^2 .

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

It is not a de Polignac number, because 28652185 - 2¹¹ = 28650137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 27864 + ... + 28873.

It is an arithmetic number, because the mean of its divisors is an integer number (4340457).

Almost surely, 2^28652185 is an apocalyptic number.

It is an amenable number.

28652185 is a deficient number, since it is larger than the sum of its proper divisors (6071471).

28652185 is a wasteful number, since it uses less digits than its factorization.

28652185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56843.

The product of its digits is 38400, while the sum is 37.

The square root of 28652185 is about 5352.7735801171. The cubic root of 28652185 is about 305.9984656821.

It can be divided in two parts, 2865 and 2185, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 28652185 in words is "twenty-eight million, six hundred fifty-two thousand, one hundred eighty-five".