91486886 has 16 divisors (see below), whose sum is σ = 140697744. Its totient is φ = 44591904.

The previous prime is 91486873. The next prime is 91486891. The reversal of 91486886 is 68868419.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74816 + ... + 76028.

It is an arithmetic number, because the mean of its divisors is an integer number (8793609).

Almost surely, 2^91486886 is an apocalyptic number.

91486886 is a deficient number, since it is larger than the sum of its proper divisors (49210858).

91486886 is a wasteful number, since it uses less digits than its factorization.

91486886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its digits is 663552, while the sum is 50.

The square root of 91486886 is about 9564.8777305306. The cubic root of 91486886 is about 450.5949102878.

The spelling of 91486886 in words is "ninety-one million, four hundred eighty-six thousand, eight hundred eighty-six".