91668343 has 4 divisors (see below), whose sum is σ = 98719768. Its totient is φ = 84616920.

The previous prime is 91668341. The next prime is 91668373. The reversal of 91668343 is 34386619.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91668343 - 2¹ = 91668341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91668296 and 91668305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91668341) 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, 3525693 + ... + 3525718.

It is an arithmetic number, because the mean of its divisors is an integer number (24679942).

Almost surely, 2^91668343 is an apocalyptic number.

91668343 is a deficient number, since it is larger than the sum of its proper divisors (7051425).

91668343 is a wasteful number, since it uses less digits than its factorization.

91668343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051424.

The product of its digits is 93312, while the sum is 40.

The square root of 91668343 is about 9574.3586208163. The cubic root of 91668343 is about 450.8926199978.

The spelling of 91668343 in words is "ninety-one million, six hundred sixty-eight thousand, three hundred forty-three".