671922 has 32 divisors (see below), whose sum is σ = 1560960. Its totient is φ = 213840.

The previous prime is 671921. The next prime is 671933. The reversal of 671922 is 229176.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (671921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972 + ... + 1512.

It is an arithmetic number, because the mean of its divisors is an integer number (48780).

2⁶⁷¹⁹²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780480).

671922 is an abundant number, since it is smaller than the sum of its proper divisors (889038).

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

671922 is a wasteful number, since it uses less digits than its factorization.

671922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 569 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 671922 is about 819.7084847676. The cubic root of 671922 is about 87.5869937530.

The spelling of 671922 in words is "six hundred seventy-one thousand, nine hundred twenty-two".