27067661 has 2 divisors, whose sum is σ = 27067662. Its totient is φ = 27067660.

The previous prime is 27067657. The next prime is 27067693. The reversal of 27067661 is 16676072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24157225 + 2910436 = 4915^2 + 1706^2 .

It is a cyclic number.

It is not a de Polignac number, because 27067661 - 2² = 27067657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27067561) 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 as a sum of consecutive naturals, namely, 13533830 + 13533831.

It is an arithmetic number, because the mean of its divisors is an integer number (13533831).

Almost surely, 2^27067661 is an apocalyptic number.

It is an amenable number.

27067661 is a deficient number, since it is larger than the sum of its proper divisors (1).

27067661 is an equidigital number, since it uses as much as digits as its factorization.

27067661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 27067661 is about 5202.6590316875. The cubic root of 27067661 is about 300.2503872589.

The spelling of 27067661 in words is "twenty-seven million, sixty-seven thousand, six hundred sixty-one".