27242613 has 6 divisors (see below), whose sum is σ = 39350454. Its totient is φ = 18161736.

The previous prime is 27242549. The next prime is 27242617. The reversal of 27242613 is 31624272.

27242613 is a `hidden beast` number, since 2 + 7 + 2 + 42 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26286129 + 956484 = 5127^2 + 978^2 .

It is not a de Polignac number, because 27242613 - 2⁶ = 27242549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27242617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1513470 + ... + 1513487.

It is an arithmetic number, because the mean of its divisors is an integer number (6558409).

Almost surely, 2^27242613 is an apocalyptic number.

It is an amenable number.

27242613 is a deficient number, since it is larger than the sum of its proper divisors (12107841).

27242613 is a wasteful number, since it uses less digits than its factorization.

27242613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026963 (or 3026960 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 27242613 is about 5219.4456602210. The cubic root of 27242613 is about 300.8958886155.

Adding to 27242613 its reverse (31624272), we get a palindrome (58866885).

The spelling of 27242613 in words is "twenty-seven million, two hundred forty-two thousand, six hundred thirteen".