217939114 has 8 divisors (see below), whose sum is σ = 337454208. Its totient is φ = 105454380.

The previous prime is 217939109. The next prime is 217939121. The reversal of 217939114 is 411939712.

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

It is a super-2 number, since 2×217939114² = 94994914822209992, which contains 22 as substring.

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, 1757512 + ... + 1757635.

It is an arithmetic number, because the mean of its divisors is an integer number (42181776).

Almost surely, 2^217939114 is an apocalyptic number.

217939114 is a deficient number, since it is larger than the sum of its proper divisors (119515094).

217939114 is a wasteful number, since it uses less digits than its factorization.

217939114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515180.

The product of its digits is 13608, while the sum is 37.

The square root of 217939114 is about 14762.7610561168. The cubic root of 217939114 is about 601.7901296739.

The spelling of 217939114 in words is "two hundred seventeen million, nine hundred thirty-nine thousand, one hundred fourteen".