27423493 has 2 divisors, whose sum is σ = 27423494. Its totient is φ = 27423492.

The previous prime is 27423469. The next prime is 27423503. The reversal of 27423493 is 39432472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27384289 + 39204 = 5233^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 27423493 - 2⁹ = 27422981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27423443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13711746 + 13711747.

It is an arithmetic number, because the mean of its divisors is an integer number (13711747).

Almost surely, 2^27423493 is an apocalyptic number.

It is an amenable number.

27423493 is a deficient number, since it is larger than the sum of its proper divisors (1).

27423493 is an equidigital number, since it uses as much as digits as its factorization.

27423493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 34.

The square root of 27423493 is about 5236.7445039834. The cubic root of 27423493 is about 301.5603627490.

The spelling of 27423493 in words is "twenty-seven million, four hundred twenty-three thousand, four hundred ninety-three".