27330971 has 4 divisors (see below), whose sum is σ = 27572952. Its totient is φ = 27088992.

The previous prime is 27330967. The next prime is 27330977. The reversal of 27330971 is 17903372.

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

It is a cyclic number.

It is not a de Polignac number, because 27330971 - 2² = 27330967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27330977) 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, 120821 + ... + 121046.

It is an arithmetic number, because the mean of its divisors is an integer number (6893238).

Almost surely, 2^27330971 is an apocalyptic number.

27330971 is a deficient number, since it is larger than the sum of its proper divisors (241981).

27330971 is a wasteful number, since it uses less digits than its factorization.

27330971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241980.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 27330971 is about 5227.9031169294. The cubic root of 27330971 is about 301.2208435824.

The spelling of 27330971 in words is "twenty-seven million, three hundred thirty thousand, nine hundred seventy-one".