91723360 has 48 divisors (see below), whose sum is σ = 218087856. Its totient is φ = 36453888.

The previous prime is 91723339. The next prime is 91723361. The reversal of 91723360 is 6332719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91723361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24322 + ... + 27838.

It is an arithmetic number, because the mean of its divisors is an integer number (4543497).

Almost surely, 2^91723360 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 91723360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109043928).

91723360 is an abundant number, since it is smaller than the sum of its proper divisors (126364496).

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

91723360 is a wasteful number, since it uses less digits than its factorization.

91723360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 91723360 is about 9577.2313326974. The cubic root of 91723360 is about 450.9828067054.

The spelling of 91723360 in words is "ninety-one million, seven hundred twenty-three thousand, three hundred sixty".