216447327 has 12 divisors (see below), whose sum is σ = 312838344. Its totient is φ = 144209520.

The previous prime is 216447311. The next prime is 216447331. The reversal of 216447327 is 723744612.

216447327 is a `hidden beast` number, since 2 + 1 + 644 + 7 + 3 + 2 + 7 = 666.

It is not a de Polignac number, because 216447327 - 2⁴ = 216447311 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 216447291 and 216447300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216447307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10288 + ... + 23210.

It is an arithmetic number, because the mean of its divisors is an integer number (26069862).

Almost surely, 2^216447327 is an apocalyptic number.

216447327 is a deficient number, since it is larger than the sum of its proper divisors (96391017).

216447327 is a wasteful number, since it uses less digits than its factorization.

216447327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14790 (or 14787 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 216447327 is about 14712.1489592785. The cubic root of 216447327 is about 600.4139060706.

The spelling of 216447327 in words is "two hundred sixteen million, four hundred forty-seven thousand, three hundred twenty-seven".