27828793 has 4 divisors (see below), whose sum is σ = 28726528. Its totient is φ = 26931060.

The previous prime is 27828751. The next prime is 27828797. The reversal of 27828793 is 39782872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27828793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27828797) 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 3 ways as a sum of consecutive naturals, for example, 448821 + ... + 448882.

It is an arithmetic number, because the mean of its divisors is an integer number (7181632).

Almost surely, 2^27828793 is an apocalyptic number.

It is an amenable number.

27828793 is a deficient number, since it is larger than the sum of its proper divisors (897735).

27828793 is an equidigital number, since it uses as much as digits as its factorization.

27828793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897734.

The product of its digits is 338688, while the sum is 46.

The square root of 27828793 is about 5275.3002758137. The cubic root of 27828793 is about 303.0387203764.

The spelling of 27828793 in words is "twenty-seven million, eight hundred twenty-eight thousand, seven hundred ninety-three".