216084673 has 4 divisors (see below), whose sum is σ = 246953920. Its totient is φ = 185215428.

The previous prime is 216084647. The next prime is 216084677. The reversal of 216084673 is 376480612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216084673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216084677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15434613 + ... + 15434626.

It is an arithmetic number, because the mean of its divisors is an integer number (61738480).

Almost surely, 2^216084673 is an apocalyptic number.

It is an amenable number.

216084673 is a deficient number, since it is larger than the sum of its proper divisors (30869247).

216084673 is an equidigital number, since it uses as much as digits as its factorization.

216084673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30869246.

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

The square root of 216084673 is about 14699.8188084071. The cubic root of 216084673 is about 600.0783906836.

The spelling of 216084673 in words is "two hundred sixteen million, eighty-four thousand, six hundred seventy-three".