27424027 has 4 divisors (see below), whose sum is σ = 28616400. Its totient is φ = 26231656.

The previous prime is 27424013. The next prime is 27424031. The reversal of 27424027 is 72042472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27424027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27423986 and 27424004.

It is not an unprimeable number, because it can be changed into a prime (27424037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596152 + ... + 596197.

It is an arithmetic number, because the mean of its divisors is an integer number (7154100).

Almost surely, 2^27424027 is an apocalyptic number.

27424027 is a deficient number, since it is larger than the sum of its proper divisors (1192373).

27424027 is a wasteful number, since it uses less digits than its factorization.

27424027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192372.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 27424027 is about 5236.7954896100. The cubic root of 27424027 is about 301.5623200998.

Adding to 27424027 its reverse (72042472), we get a palindrome (99466499).

The spelling of 27424027 in words is "twenty-seven million, four hundred twenty-four thousand, twenty-seven".