27212117 has 8 divisors (see below), whose sum is σ = 27784800. Its totient is φ = 26644464.

The previous prime is 27212111. The next prime is 27212167. The reversal of 27212117 is 71121272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27212117 - 2¹² = 27208021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27212092 and 27212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27212111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10859 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (3473100).

Almost surely, 2^27212117 is an apocalyptic number.

It is an amenable number.

27212117 is a deficient number, since it is larger than the sum of its proper divisors (572683).

27212117 is a wasteful number, since it uses less digits than its factorization.

27212117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its digits is 392, while the sum is 23.

The square root of 27212117 is about 5216.5234591632. The cubic root of 27212117 is about 300.7835701295.

Adding to 27212117 its reverse (71121272), we get a palindrome (98333389).

The spelling of 27212117 in words is "twenty-seven million, two hundred twelve thousand, one hundred seventeen".