312216327 has 6 divisors (see below), whose sum is σ = 450979152. Its totient is φ = 208144212.

The previous prime is 312216313. The next prime is 312216337. The reversal of 312216327 is 723612213.

312216327 is a `hidden beast` number, since 3 + 1 + 2 + 21 + 632 + 7 = 666.

It is not a de Polignac number, because 312216327 - 2¹⁵ = 312183559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312216327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312216337) 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, 17345343 + ... + 17345360.

It is an arithmetic number, because the mean of its divisors is an integer number (75163192).

Almost surely, 2^312216327 is an apocalyptic number.

312216327 is a deficient number, since it is larger than the sum of its proper divisors (138762825).

312216327 is a wasteful number, since it uses less digits than its factorization.

312216327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34690709 (or 34690706 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 312216327 is about 17669.6442239226. The cubic root of 312216327 is about 678.3990067892.

The spelling of 312216327 in words is "three hundred twelve million, two hundred sixteen thousand, three hundred twenty-seven".