27221023 has 2 divisors, whose sum is σ = 27221024. Its totient is φ = 27221022.

The previous prime is 27221017. The next prime is 27221027. The reversal of 27221023 is 32012272.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27221023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27221027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13610511 + 13610512.

It is an arithmetic number, because the mean of its divisors is an integer number (13610512).

Almost surely, 2^27221023 is an apocalyptic number.

27221023 is a deficient number, since it is larger than the sum of its proper divisors (1).

27221023 is an equidigital number, since it uses as much as digits as its factorization.

27221023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 27221023 is about 5217.3770229877. The cubic root of 27221023 is about 300.8163801003.

Adding to 27221023 its reverse (32012272), we get a palindrome (59233295).

The spelling of 27221023 in words is "twenty-seven million, two hundred twenty-one thousand, twenty-three".