216389167 has 8 divisors (see below), whose sum is σ = 222241680. Its totient is φ = 210609600.

The previous prime is 216389161. The next prime is 216389177. The reversal of 216389167 is 761983612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216389167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216389161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12198 + ... + 24115.

It is an arithmetic number, because the mean of its divisors is an integer number (27780210).

Almost surely, 2^216389167 is an apocalyptic number.

216389167 is a deficient number, since it is larger than the sum of its proper divisors (5852513).

216389167 is a wasteful number, since it uses less digits than its factorization.

216389167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36473.

The product of its digits is 108864, while the sum is 43.

The square root of 216389167 is about 14710.1722287674. The cubic root of 216389167 is about 600.3601236232.

The spelling of 216389167 in words is "two hundred sixteen million, three hundred eighty-nine thousand, one hundred sixty-seven".