216895922 has 8 divisors (see below), whose sum is σ = 329462400. Its totient is φ = 107075124.

The previous prime is 216895919. The next prime is 216895927. The reversal of 216895922 is 229598612.

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

It is not an unprimeable number, because it can be changed into a prime (216895927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686222 + ... + 686537.

It is an arithmetic number, because the mean of its divisors is an integer number (41182800).

Almost surely, 2^216895922 is an apocalyptic number.

216895922 is a deficient number, since it is larger than the sum of its proper divisors (112566478).

216895922 is a wasteful number, since it uses less digits than its factorization.

216895922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372840.

The product of its digits is 155520, while the sum is 44.

The square root of 216895922 is about 14727.3868014662. The cubic root of 216895922 is about 600.8284131006.

The spelling of 216895922 in words is "two hundred sixteen million, eight hundred ninety-five thousand, nine hundred twenty-two".