27882691 has 4 divisors (see below), whose sum is σ = 27893952. Its totient is φ = 27871432.

The previous prime is 27882689. The next prime is 27882713. The reversal of 27882691 is 19628872.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27882691 - 2¹ = 27882689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27882641) 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 3 ways as a sum of consecutive naturals, for example, 115 + ... + 7468.

It is an arithmetic number, because the mean of its divisors is an integer number (6973488).

Almost surely, 2^27882691 is an apocalyptic number.

27882691 is a deficient number, since it is larger than the sum of its proper divisors (11261).

27882691 is an equidigital number, since it uses as much as digits as its factorization.

27882691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11260.

The product of its digits is 96768, while the sum is 43.

The square root of 27882691 is about 5280.4063290622. The cubic root of 27882691 is about 303.2342330808.

The spelling of 27882691 in words is "twenty-seven million, eight hundred eighty-two thousand, six hundred ninety-one".