216672934 has 8 divisors (see below), whose sum is σ = 325072368. Its totient is φ = 108315480.

The previous prime is 216672893. The next prime is 216672943. The reversal of 216672934 is 439276612.

It is a happy number.

216672934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12399 + ... + 24229.

It is an arithmetic number, because the mean of its divisors is an integer number (40634046).

Almost surely, 2^216672934 is an apocalyptic number.

216672934 is a deficient number, since it is larger than the sum of its proper divisors (108399434).

216672934 is a wasteful number, since it uses less digits than its factorization.

216672934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20990.

The product of its digits is 108864, while the sum is 40.

The square root of 216672934 is about 14719.8143330682. The cubic root of 216672934 is about 600.6224410922.

The spelling of 216672934 in words is "two hundred sixteen million, six hundred seventy-two thousand, nine hundred thirty-four".