91106994 has 32 divisors (see below), whose sum is σ = 200229120. Its totient is φ = 27406800.

The previous prime is 91106909. The next prime is 91107011. The reversal of 91106994 is 49960119.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4209 + ... + 14139.

It is an arithmetic number, because the mean of its divisors is an integer number (6257160).

Almost surely, 2^91106994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91106994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100114560).

91106994 is an abundant number, since it is smaller than the sum of its proper divisors (109122126).

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

91106994 is a wasteful number, since it uses less digits than its factorization.

91106994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10086.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 91106994 is about 9544.9983761130. The cubic root of 91106994 is about 449.9703585414.

The spelling of 91106994 in words is "ninety-one million, one hundred six thousand, nine hundred ninety-four".