27828717 has 12 divisors (see below), whose sum is σ = 43163136. Its totient is φ = 15902040.

The previous prime is 27828679. The next prime is 27828727. The reversal of 27828717 is 71782872.

It is not a de Polignac number, because 27828717 - 2¹⁰ = 27827693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828727) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 94509 + ... + 94802.

It is an arithmetic number, because the mean of its divisors is an integer number (3596928).

Almost surely, 2^27828717 is an apocalyptic number.

It is an amenable number.

27828717 is a deficient number, since it is larger than the sum of its proper divisors (15334419).

27828717 is a wasteful number, since it uses less digits than its factorization.

27828717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189328 (or 189321 counting only the distinct ones).

The product of its digits is 87808, while the sum is 42.

The square root of 27828717 is about 5275.2930724274. The cubic root of 27828717 is about 303.0384445115.

The spelling of 27828717 in words is "twenty-seven million, eight hundred twenty-eight thousand, seven hundred seventeen".