27949223 has 2 divisors, whose sum is σ = 27949224. Its totient is φ = 27949222.

The previous prime is 27949217. The next prime is 27949231. The reversal of 27949223 is 32294972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27949223 - 2²² = 23754919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27949123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13974611 + 13974612.

It is an arithmetic number, because the mean of its divisors is an integer number (13974612).

Almost surely, 2^27949223 is an apocalyptic number.

27949223 is a deficient number, since it is larger than the sum of its proper divisors (1).

27949223 is an equidigital number, since it uses as much as digits as its factorization.

27949223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 27949223 is about 5286.7024694038. The cubic root of 27949223 is about 303.4752279285.

The spelling of 27949223 in words is "twenty-seven million, nine hundred forty-nine thousand, two hundred twenty-three".