27776081 has 8 divisors (see below), whose sum is σ = 29790720. Its totient is φ = 25816752.

The previous prime is 27776071. The next prime is 27776083. The reversal of 27776081 is 18067772.

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

It is a cyclic number.

It is not a de Polignac number, because 27776081 - 2⁶ = 27776017 is a prime.

It is a super-2 number, since 2×27776081² = 1543021351437122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27776083) 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 7 ways as a sum of consecutive naturals, for example, 12785 + ... + 14798.

It is an arithmetic number, because the mean of its divisors is an integer number (3723840).

Almost surely, 2^27776081 is an apocalyptic number.

It is an amenable number.

27776081 is a deficient number, since it is larger than the sum of its proper divisors (2014639).

27776081 is a wasteful number, since it uses less digits than its factorization.

27776081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27655.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 27776081 is about 5270.3017940152. The cubic root of 27776081 is about 302.8472655134.

The spelling of 27776081 in words is "twenty-seven million, seven hundred seventy-six thousand, eighty-one".