27066461 has 4 divisors (see below), whose sum is σ = 27159132. Its totient is φ = 26973792.

The previous prime is 27066451. The next prime is 27066463. The reversal of 27066461 is 16466072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23951236 + 3115225 = 4894^2 + 1765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27066461 is a prime.

It is a super-2 number, since 2×27066461² = 1465186622129042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27066463) 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, 45896 + ... + 46481.

It is an arithmetic number, because the mean of its divisors is an integer number (6789783).

Almost surely, 2^27066461 is an apocalyptic number.

It is an amenable number.

27066461 is a deficient number, since it is larger than the sum of its proper divisors (92671).

27066461 is an equidigital number, since it uses as much as digits as its factorization.

27066461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92670.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 27066461 is about 5202.5437047660. The cubic root of 27066461 is about 300.2459501585.

The spelling of 27066461 in words is "twenty-seven million, sixty-six thousand, four hundred sixty-one".