91668332 has 12 divisors (see below), whose sum is σ = 183336720. Its totient is φ = 39286416.

The previous prime is 91668287. The next prime is 91668337. The reversal of 91668332 is 23386619.

91668332 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (91668337) 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, 1636907 + ... + 1636962.

It is an arithmetic number, because the mean of its divisors is an integer number (15278060).

Almost surely, 2^91668332 is an apocalyptic number.

It is an amenable number.

91668332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91668332 is a wasteful number, since it uses less digits than its factorization.

91668332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273880 (or 3273878 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 91668332 is about 9574.3580463653. The cubic root of 91668332 is about 450.8926019624.

The spelling of 91668332 in words is "ninety-one million, six hundred sixty-eight thousand, three hundred thirty-two".