91743960 has 128 divisors (see below), whose sum is σ = 343180800. Its totient is φ = 19061760.

The previous prime is 91743947. The next prime is 91744001. The reversal of 91743960 is 6934719.

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 31 ways as a sum of consecutive naturals, for example, 4276 + ... + 14204.

It is an arithmetic number, because the mean of its divisors is an integer number (2681100).

Almost surely, 2^91743960 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 91743960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171590400).

91743960 is an abundant number, since it is smaller than the sum of its proper divisors (251436840).

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

91743960 is a wasteful number, since it uses less digits than its factorization.

91743960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961 (or 9957 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 91743960 is about 9578.3067397114. The cubic root of 91743960 is about 451.0165660095.

The spelling of 91743960 in words is "ninety-one million, seven hundred forty-three thousand, nine hundred sixty".