91219848 has 32 divisors (see below), whose sum is σ = 235915200. Its totient is φ = 29357888.

The previous prime is 91219801. The next prime is 91219873. The reversal of 91219848 is 84891219.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64836 + ... + 66227.

It is an arithmetic number, because the mean of its divisors is an integer number (7372350).

Almost surely, 2^91219848 is an apocalyptic number.

It is an amenable number.

91219848 is an abundant number, since it is smaller than the sum of its proper divisors (144695352).

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

91219848 is a wasteful number, since it uses less digits than its factorization.

91219848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131101 (or 131097 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The square root of 91219848 is about 9550.9082290639. The cubic root of 91219848 is about 450.1560742573.

The spelling of 91219848 in words is "ninety-one million, two hundred nineteen thousand, eight hundred forty-eight".