216086347 has 2 divisors, whose sum is σ = 216086348. Its totient is φ = 216086346.

The previous prime is 216086317. The next prime is 216086363. The reversal of 216086347 is 743680612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216086347 - 2¹¹ = 216084299 is a prime.

It is not a weakly prime, because it can be changed into another prime (216086317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108043173 + 108043174.

It is an arithmetic number, because the mean of its divisors is an integer number (108043174).

Almost surely, 2^216086347 is an apocalyptic number.

216086347 is a deficient number, since it is larger than the sum of its proper divisors (1).

216086347 is an equidigital number, since it uses as much as digits as its factorization.

216086347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 216086347 is about 14699.8757477742. The cubic root of 216086347 is about 600.0799402747.

The spelling of 216086347 in words is "two hundred sixteen million, eighty-six thousand, three hundred forty-seven".