27320771 has 4 divisors (see below), whose sum is σ = 27902112. Its totient is φ = 26739432.

The previous prime is 27320753. The next prime is 27320773. The reversal of 27320771 is 17702372.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27320771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27320773) 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, 290600 + ... + 290693.

It is an arithmetic number, because the mean of its divisors is an integer number (6975528).

Almost surely, 2^27320771 is an apocalyptic number.

27320771 is a deficient number, since it is larger than the sum of its proper divisors (581341).

27320771 is an equidigital number, since it uses as much as digits as its factorization.

27320771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581340.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 27320771 is about 5226.9274913662. The cubic root of 27320771 is about 301.1833667470.

The spelling of 27320771 in words is "twenty-seven million, three hundred twenty thousand, seven hundred seventy-one".