27682081 has 4 divisors (see below), whose sum is σ = 31636672. Its totient is φ = 23727492.

The previous prime is 27682079. The next prime is 27682097. The reversal of 27682081 is 18028672.

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 not a de Polignac number, because 27682081 - 2¹ = 27682079 is a prime.

It is a super-2 number, since 2×27682081² = 1532595216981122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27682051) 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, 1977285 + ... + 1977298.

It is an arithmetic number, because the mean of its divisors is an integer number (7909168).

Almost surely, 2^27682081 is an apocalyptic number.

It is an amenable number.

27682081 is a deficient number, since it is larger than the sum of its proper divisors (3954591).

27682081 is an equidigital number, since it uses as much as digits as its factorization.

27682081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954590.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 27682081 is about 5261.3763408447. The cubic root of 27682081 is about 302.5052468184.

The spelling of 27682081 in words is "twenty-seven million, six hundred eighty-two thousand, eighty-one".