27427666 has 16 divisors (see below), whose sum is σ = 47090304. Its totient is φ = 11736864.

The previous prime is 27427663. The next prime is 27427667. The reversal of 27427666 is 66672472.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27427663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12766 + ... + 14758.

It is an arithmetic number, because the mean of its divisors is an integer number (2943144).

Almost surely, 2^27427666 is an apocalyptic number.

27427666 is a deficient number, since it is larger than the sum of its proper divisors (19662638).

27427666 is a wasteful number, since it uses less digits than its factorization.

27427666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985.

The product of its digits is 169344, while the sum is 40.

The square root of 27427666 is about 5237.1429233887. The cubic root of 27427666 is about 301.5756579993.

The spelling of 27427666 in words is "twenty-seven million, four hundred twenty-seven thousand, six hundred sixty-six".