27142717 has 6 divisors (see below), whose sum is σ = 31574238. Its totient is φ = 23265144.

The previous prime is 27142711. The next prime is 27142721. The reversal of 27142717 is 71724172.

It can be written as a sum of positive squares in only one way, i.e., 22524516 + 4618201 = 4746^2 + 2149^2 .

It is not a de Polignac number, because 27142717 - 2¹⁵ = 27109949 is a prime.

It is a super-2 number, since 2×27142717² = 1473454172284178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27142711) 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, 276918 + ... + 277015.

It is an arithmetic number, because the mean of its divisors is an integer number (5262373).

Almost surely, 2^27142717 is an apocalyptic number.

It is an amenable number.

27142717 is a deficient number, since it is larger than the sum of its proper divisors (4431521).

27142717 is an equidigital number, since it uses as much as digits as its factorization.

27142717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553947 (or 553940 counting only the distinct ones).

The product of its digits is 5488, while the sum is 31.

The square root of 27142717 is about 5209.8672727815. The cubic root of 27142717 is about 300.5276528788.

Adding to 27142717 its reverse (71724172), we get a palindrome (98866889).

The spelling of 27142717 in words is "twenty-seven million, one hundred forty-two thousand, seven hundred seventeen".