27381323 has 4 divisors (see below), whose sum is σ = 27448680. Its totient is φ = 27313968.

The previous prime is 27381311. The next prime is 27381329. The reversal of 27381323 is 32318372.

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 27381323 - 2¹⁰ = 27380299 is a prime.

It is a super-3 number, since 3×27381323³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27381329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33065 + ... + 33882.

It is an arithmetic number, because the mean of its divisors is an integer number (6862170).

Almost surely, 2^27381323 is an apocalyptic number.

27381323 is a deficient number, since it is larger than the sum of its proper divisors (67357).

27381323 is an equidigital number, since it uses as much as digits as its factorization.

27381323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67356.

The product of its digits is 6048, while the sum is 29.

The square root of 27381323 is about 5232.7165984792. The cubic root of 27381323 is about 301.4057103807.

Adding to 27381323 its reverse (32318372), we get a palindrome (59699695).

The spelling of 27381323 in words is "twenty-seven million, three hundred eighty-one thousand, three hundred twenty-three".