91427112 has 96 divisors (see below), whose sum is σ = 284431680. Its totient is φ = 25989120.

The previous prime is 91427009. The next prime is 91427117. The reversal of 91427112 is 21172419.

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

It is not an unprimeable number, because it can be changed into a prime (91427117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142312 + ... + 142952.

It is an arithmetic number, because the mean of its divisors is an integer number (2962830).

Almost surely, 2^91427112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91427112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142215840).

91427112 is an abundant number, since it is smaller than the sum of its proper divisors (193004568).

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

91427112 is a wasteful number, since it uses less digits than its factorization.

91427112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 936 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 91427112 is about 9561.7525590239. The cubic root of 91427112 is about 450.4967551338.

The spelling of 91427112 in words is "ninety-one million, four hundred twenty-seven thousand, one hundred twelve".