27281323 has 2 divisors, whose sum is σ = 27281324. Its totient is φ = 27281322.

The previous prime is 27281281. The next prime is 27281327. The reversal of 27281323 is 32318272.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27281323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27281291 and 27281300.

It is not a weakly prime, because it can be changed into another prime (27281327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13640661 + 13640662.

It is an arithmetic number, because the mean of its divisors is an integer number (13640662).

Almost surely, 2^27281323 is an apocalyptic number.

27281323 is a deficient number, since it is larger than the sum of its proper divisors (1).

27281323 is an equidigital number, since it uses as much as digits as its factorization.

27281323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 27281323 is about 5223.1525920654. The cubic root of 27281323 is about 301.0383390641.

Adding to 27281323 its reverse (32318272), we get a palindrome (59599595).

The spelling of 27281323 in words is "twenty-seven million, two hundred eighty-one thousand, three hundred twenty-three".