91234736 has 40 divisors (see below), whose sum is σ = 183321600. Its totient is φ = 43940160.

The previous prime is 91234729. The next prime is 91234747. The reversal of 91234736 is 63743219.

It is a junction number, because it is equal to n+sod(n) for n = 91234696 and 91234705.

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, 207605 + ... + 208043.

It is an arithmetic number, because the mean of its divisors is an integer number (4583040).

Almost surely, 2^91234736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91234736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91660800).

91234736 is an abundant number, since it is smaller than the sum of its proper divisors (92086864).

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

91234736 is a wasteful number, since it uses less digits than its factorization.

91234736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 891 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 91234736 is about 9551.6875995816. The cubic root of 91234736 is about 450.1805629302.

The spelling of 91234736 in words is "ninety-one million, two hundred thirty-four thousand, seven hundred thirty-six".