27315212 has 12 divisors (see below), whose sum is σ = 47860680. Its totient is φ = 13640736.

The previous prime is 27315173. The next prime is 27315229. The reversal of 27315212 is 21251372.

It is a happy number.

It is a super-2 number, since 2×27315212² = 1492241613209888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137 + ... + 7392.

It is an arithmetic number, because the mean of its divisors is an integer number (3988390).

Almost surely, 2^27315212 is an apocalyptic number.

It is an amenable number.

27315212 is a deficient number, since it is larger than the sum of its proper divisors (20545468).

27315212 is a wasteful number, since it uses less digits than its factorization.

27315212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440 (or 8438 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 27315212 is about 5226.3956987584. The cubic root of 27315212 is about 301.1629379445.

Adding to 27315212 its reverse (21251372), we get a palindrome (48566584).

The spelling of 27315212 in words is "twenty-seven million, three hundred fifteen thousand, two hundred twelve".