91742 has 8 divisors (see below), whose sum is σ = 157296. Its totient is φ = 39312.

The previous prime is 91733. The next prime is 91753. The reversal of 91742 is 24719.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

91742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3263 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (19662).

2⁹¹⁷⁴² is an apocalyptic number.

91742 is a deficient number, since it is larger than the sum of its proper divisors (65554).

91742 is a wasteful number, since it uses less digits than its factorization.

91742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562.

The product of its digits is 504, while the sum is 23.

The square root of 91742 is about 302.8894187653. The cubic root of 91742 is about 45.1013354177.

Subtracting from 91742 its sum of digits (23), we obtain a palindrome (91719).

It can be divided in two parts, 917 and 42, that added together give a palindrome (959).

The spelling of 91742 in words is "ninety-one thousand, seven hundred forty-two".