27828249 has 8 divisors (see below), whose sum is σ = 37658400. Its totient is φ = 18275136.

The previous prime is 27828211. The next prime is 27828289. The reversal of 27828249 is 94282872.

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

It is not a de Polignac number, because 27828249 - 2⁷ = 27828121 is a prime.

It is a super-2 number, since 2×27828249² = 1548822884812002, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27828249.

It is not an unprimeable number, because it can be changed into a prime (27828209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69024 + ... + 69425.

It is an arithmetic number, because the mean of its divisors is an integer number (4707300).

Almost surely, 2^27828249 is an apocalyptic number.

It is an amenable number.

27828249 is a deficient number, since it is larger than the sum of its proper divisors (9830151).

27828249 is a wasteful number, since it uses less digits than its factorization.

27828249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138519.

The product of its digits is 129024, while the sum is 42.

The square root of 27828249 is about 5275.2487145157. The cubic root of 27828249 is about 303.0367457532.

The spelling of 27828249 in words is "twenty-seven million, eight hundred twenty-eight thousand, two hundred forty-nine".