27223247 has 2 divisors, whose sum is σ = 27223248. Its totient is φ = 27223246.

The previous prime is 27223223. The next prime is 27223267. The reversal of 27223247 is 74232272.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27223247 - 2¹² = 27219151 is a prime.

It is a super-2 number, since 2×27223247² = 1482210354446018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27223267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13611623 + 13611624.

It is an arithmetic number, because the mean of its divisors is an integer number (13611624).

Almost surely, 2^27223247 is an apocalyptic number.

27223247 is a deficient number, since it is larger than the sum of its proper divisors (1).

27223247 is an equidigital number, since it uses as much as digits as its factorization.

27223247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 29.

The square root of 27223247 is about 5217.5901525513. The cubic root of 27223247 is about 300.8245722662.

The spelling of 27223247 in words is "twenty-seven million, two hundred twenty-three thousand, two hundred forty-seven".