27828286 has 16 divisors (see below), whose sum is σ = 45034704. Its totient is φ = 12847744.

The previous prime is 27828211. The next prime is 27828289. The reversal of 27828286 is 68282872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5920 + ... + 9523.

It is an arithmetic number, because the mean of its divisors is an integer number (2814669).

Almost surely, 2^27828286 is an apocalyptic number.

27828286 is a deficient number, since it is larger than the sum of its proper divisors (17206418).

27828286 is a wasteful number, since it uses less digits than its factorization.

27828286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15515.

The product of its digits is 172032, while the sum is 43.

The square root of 27828286 is about 5275.2522214582. The cubic root of 27828286 is about 303.0368800575.

The spelling of 27828286 in words is "twenty-seven million, eight hundred twenty-eight thousand, two hundred eighty-six".