216967373 has 16 divisors (see below), whose sum is σ = 252764160. Its totient is φ = 182396016.

The previous prime is 216967351. The next prime is 216967381. The reversal of 216967373 is 373769612.

It is a cyclic number.

It is not a de Polignac number, because 216967373 - 2⁸ = 216967117 is a prime.

It is a super-2 number, since 2×216967373² = 94149681893042258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216967313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122468 + ... + 124226.

It is an arithmetic number, because the mean of its divisors is an integer number (15797760).

Almost surely, 2^216967373 is an apocalyptic number.

It is an amenable number.

216967373 is a deficient number, since it is larger than the sum of its proper divisors (35796787).

216967373 is a wasteful number, since it uses less digits than its factorization.

216967373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096.

The product of its digits is 285768, while the sum is 44.

The square root of 216967373 is about 14729.8123884861. The cubic root of 216967373 is about 600.8943818801.

The spelling of 216967373 in words is "two hundred sixteen million, nine hundred sixty-seven thousand, three hundred seventy-three".