91041606 has 48 divisors (see below), whose sum is σ = 204766848. Its totient is φ = 29203200.

The previous prime is 91041593. The next prime is 91041611. The reversal of 91041606 is 60614019.

91041606 is a `hidden beast` number, since 9 + 10 + 41 + 606 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 91041606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134140 + ... + 134816.

It is an arithmetic number, because the mean of its divisors is an integer number (4265976).

Almost surely, 2^91041606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91041606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102383424).

91041606 is an abundant number, since it is smaller than the sum of its proper divisors (113725242).

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

91041606 is a wasteful number, since it uses less digits than its factorization.

91041606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 91041606 is about 9541.5725119081. The cubic root of 91041606 is about 449.8626840287.

The spelling of 91041606 in words is "ninety-one million, forty-one thousand, six hundred six".