91868112 has 60 divisors (see below), whose sum is σ = 293835360. Its totient is φ = 26247744.

The previous prime is 91868111. The next prime is 91868113. The reversal of 91868112 is 21186819.

It is an interprime number because it is at equal distance from previous prime (91868111) and next prime (91868113).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91868111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44562 + ... + 46577.

It is an arithmetic number, because the mean of its divisors is an integer number (4897256).

Almost surely, 2^91868112 is an apocalyptic number.

It is an amenable number.

91868112 is an abundant number, since it is smaller than the sum of its proper divisors (201967248).

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

91868112 is a wasteful number, since it uses less digits than its factorization.

91868112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91160 (or 91151 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 91868112 is about 9584.7854436080. The cubic root of 91868112 is about 451.2199195220.

The spelling of 91868112 in words is "ninety-one million, eight hundred sixty-eight thousand, one hundred twelve".