28827185 has 8 divisors (see below), whose sum is σ = 34659816. Its totient is φ = 23016960.

The previous prime is 28827173. The next prime is 28827193. The reversal of 28827185 is 58172882.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 28826161 = 32^2 + 5369^2 .

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

It is not a de Polignac number, because 28827185 - 2⁸ = 28826929 is a prime.

It is a Duffinian 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, 2624 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (4332477).

Almost surely, 2^28827185 is an apocalyptic number.

It is an amenable number.

28827185 is a deficient number, since it is larger than the sum of its proper divisors (5832631).

28827185 is a wasteful number, since it uses less digits than its factorization.

28827185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11203.

The product of its digits is 71680, while the sum is 41.

The square root of 28827185 is about 5369.0953614180. The cubic root of 28827185 is about 306.6201876366.

The spelling of 28827185 in words is "twenty-eight million, eight hundred twenty-seven thousand, one hundred eighty-five".