91822 has 8 divisors (see below), whose sum is σ = 142272. Its totient is φ = 44400.

The previous prime is 91813. The next prime is 91823. The reversal of 91822 is 22819.

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

It is a d-powerful number, because it can be written as 9⁵ + 1 + 8⁵ + 2 + 2 .

It is a plaindrome in base 14 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 91793 and 91802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91823) by changing a digit.

91822 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, 679 + ... + 802.

It is an arithmetic number, because the mean of its divisors is an integer number (17784).

2⁹¹⁸²² is an apocalyptic number.

91822 is a deficient number, since it is larger than the sum of its proper divisors (50450).

91822 is a wasteful number, since it uses less digits than its factorization.

91822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its digits is 288, while the sum is 22.

The square root of 91822 is about 303.0214513859. The cubic root of 91822 is about 45.1144412237.

The spelling of 91822 in words is "ninety-one thousand, eight hundred twenty-two".