91816734 has 16 divisors (see below), whose sum is σ = 183753360. Its totient is φ = 30585600.

The previous prime is 91816729. The next prime is 91816757. The reversal of 91816734 is 43761819.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91816692 and 91816701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7284 + ... + 15384.

It is an arithmetic number, because the mean of its divisors is an integer number (11484585).

Almost surely, 2^91816734 is an apocalyptic number.

91816734 is an abundant number, since it is smaller than the sum of its proper divisors (91936626).

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

91816734 is a wasteful number, since it uses less digits than its factorization.

91816734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995.

The product of its digits is 36288, while the sum is 39.

The square root of 91816734 is about 9582.1048835838. The cubic root of 91816734 is about 451.1357876813.

The spelling of 91816734 in words is "ninety-one million, eight hundred sixteen thousand, seven hundred thirty-four".