671322 has 16 divisors (see below), whose sum is σ = 1354752. Its totient is φ = 221760.

The previous prime is 671303. The next prime is 671323. The reversal of 671322 is 223176.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (671323) by changing a digit.

671322 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 322 + ... + 1202.

It is an arithmetic number, because the mean of its divisors is an integer number (84672).

2⁶⁷¹³²² is an apocalyptic number.

671322 is an abundant number, since it is smaller than the sum of its proper divisors (683430).

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

671322 is a wasteful number, since it uses less digits than its factorization.

671322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its digits is 504, while the sum is 21.

The square root of 671322 is about 819.3424192607. The cubic root of 671322 is about 87.5609154054.

Adding to 671322 its reverse (223176), we get a palindrome (894498).

The spelling of 671322 in words is "six hundred seventy-one thousand, three hundred twenty-two".