971822 has 16 divisors (see below), whose sum is σ = 1564272. Its totient is φ = 451200.

The previous prime is 971821. The next prime is 971833. The reversal of 971822 is 228179.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 971822.

It is not an unprimeable number, because it can be changed into a prime (971821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3293 + ... + 3575.

It is an arithmetic number, because the mean of its divisors is an integer number (97767).

2⁹⁷¹⁸²² is an apocalyptic number.

971822 is a deficient number, since it is larger than the sum of its proper divisors (592450).

971822 is a wasteful number, since it uses less digits than its factorization.

971822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its digits is 2016, while the sum is 29.

The square root of 971822 is about 985.8103265842. The cubic root of 971822 is about 99.0517703585.

The spelling of 971822 in words is "nine hundred seventy-one thousand, eight hundred twenty-two".