27481423 has 2 divisors, whose sum is σ = 27481424. Its totient is φ = 27481422.

The previous prime is 27481409. The next prime is 27481451. The reversal of 27481423 is 32418472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27481423 - 2¹³ = 27473231 is a prime.

It is a super-2 number, since 2×27481423² = 1510457220209858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27481453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13740711 + 13740712.

It is an arithmetic number, because the mean of its divisors is an integer number (13740712).

Almost surely, 2^27481423 is an apocalyptic number.

27481423 is a deficient number, since it is larger than the sum of its proper divisors (1).

27481423 is an equidigital number, since it uses as much as digits as its factorization.

27481423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 31.

The square root of 27481423 is about 5242.2726941661. The cubic root of 27481423 is about 301.7725543580.

Adding to 27481423 its reverse (32418472), we get a palindrome (59899895).

The spelling of 27481423 in words is "twenty-seven million, four hundred eighty-one thousand, four hundred twenty-three".