28360085 has 8 divisors (see below), whose sum is σ = 36650040. Its totient is φ = 20942784.

The previous prime is 28360067. The next prime is 28360099. The reversal of 28360085 is 58006382.

It can be written as a sum of positive squares in 4 ways, for example, as 78961 + 28281124 = 281^2 + 5318^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 28360085 - 2¹⁰ = 28359061 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218090 + ... + 218219.

It is an arithmetic number, because the mean of its divisors is an integer number (4581255).

Almost surely, 2^28360085 is an apocalyptic number.

It is an amenable number.

28360085 is a deficient number, since it is larger than the sum of its proper divisors (8289955).

28360085 is a wasteful number, since it uses less digits than its factorization.

28360085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436327.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28360085 is about 5325.4187628768. The cubic root of 28360085 is about 304.9550592210.

The spelling of 28360085 in words is "twenty-eight million, three hundred sixty thousand, eighty-five".