27242417 has 4 divisors (see below), whose sum is σ = 27689076. Its totient is φ = 26795760.

The previous prime is 27242393. The next prime is 27242443. The reversal of 27242417 is 71424272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 295936 + 26946481 = 544^2 + 5191^2 .

It is a cyclic number.

It is not a de Polignac number, because 27242417 - 2¹⁰ = 27241393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27242417.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223238 + ... + 223359.

It is an arithmetic number, because the mean of its divisors is an integer number (6922269).

Almost surely, 2^27242417 is an apocalyptic number.

It is an amenable number.

27242417 is a deficient number, since it is larger than the sum of its proper divisors (446659).

27242417 is an equidigital number, since it uses as much as digits as its factorization.

27242417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446658.

The product of its digits is 6272, while the sum is 29.

The square root of 27242417 is about 5219.4268842470. The cubic root of 27242417 is about 300.8951670041.

Adding to 27242417 its reverse (71424272), we get a palindrome (98666689).

The spelling of 27242417 in words is "twenty-seven million, two hundred forty-two thousand, four hundred seventeen".