673722 has 24 divisors (see below), whose sum is σ = 1668576. Its totient is φ = 192456.

The previous prime is 673669. The next prime is 673747. The reversal of 673722 is 227376.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

673722 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 11 ways as a sum of consecutive naturals, for example, 2548 + ... + 2799.

It is an arithmetic number, because the mean of its divisors is an integer number (69524).

2⁶⁷³⁷²² is an apocalyptic number.

673722 is an abundant number, since it is smaller than the sum of its proper divisors (994854).

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

673722 is a wasteful number, since it uses less digits than its factorization.

673722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362 (or 5359 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 673722 is about 820.8057017346. The cubic root of 673722 is about 87.6651357679.

The spelling of 673722 in words is "six hundred seventy-three thousand, seven hundred twenty-two".