191668714 has 8 divisors (see below), whose sum is σ = 297417060. Its totient is φ = 92529696.

The previous prime is 191668699. The next prime is 191668721. The reversal of 191668714 is 417866191.

It can be written as a sum of positive squares in 2 ways, for example, as 177342489 + 14326225 = 13317^2 + 3785^2 .

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

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, 1652259 + ... + 1652374.

Almost surely, 2^191668714 is an apocalyptic number.

191668714 is a deficient number, since it is larger than the sum of its proper divisors (105748346).

191668714 is a wasteful number, since it uses less digits than its factorization.

191668714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304664.

The product of its digits is 72576, while the sum is 43.

The square root of 191668714 is about 13844.4470456570. The cubic root of 191668714 is about 576.5678335677.

The spelling of 191668714 in words is "one hundred ninety-one million, six hundred sixty-eight thousand, seven hundred fourteen".