214943666 has 8 divisors (see below), whose sum is σ = 368474880. Its totient is φ = 92118708.

The previous prime is 214943653. The next prime is 214943683. The reversal of 214943666 is 666349412.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7676546 + ... + 7676573.

It is an arithmetic number, because the mean of its divisors is an integer number (46059360).

Almost surely, 2^214943666 is an apocalyptic number.

214943666 is a deficient number, since it is larger than the sum of its proper divisors (153531214).

214943666 is a wasteful number, since it uses less digits than its factorization.

214943666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15353128.

The product of its digits is 186624, while the sum is 41.

The square root of 214943666 is about 14660.9571993100. The cubic root of 214943666 is about 599.0203141931.

The spelling of 214943666 in words is "two hundred fourteen million, nine hundred forty-three thousand, six hundred sixty-six".