91868338 has 8 divisors (see below), whose sum is σ = 137858688. Its totient is φ = 45915444.

The previous prime is 91868333. The next prime is 91868341. The reversal of 91868338 is 83386819.

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 (91868333) 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, 2106 + ... + 13717.

It is an arithmetic number, because the mean of its divisors is an integer number (17232336).

Almost surely, 2^91868338 is an apocalyptic number.

91868338 is a deficient number, since it is larger than the sum of its proper divisors (45990350).

91868338 is a wasteful number, since it uses less digits than its factorization.

91868338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18728.

The product of its digits is 248832, while the sum is 46.

The square root of 91868338 is about 9584.7972331187. The cubic root of 91868338 is about 451.2202895293.

The spelling of 91868338 in words is "ninety-one million, eight hundred sixty-eight thousand, three hundred thirty-eight".