673712 has 40 divisors (see below), whose sum is σ = 1458240. Its totient is φ = 299520.

The previous prime is 673669. The next prime is 673747. The reversal of 673712 is 217376.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8489 + ... + 8567.

It is an arithmetic number, because the mean of its divisors is an integer number (36456).

2⁶⁷³⁷¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729120).

673712 is an abundant number, since it is smaller than the sum of its proper divisors (784528).

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

673712 is a wasteful number, since it uses less digits than its factorization.

673712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 135 counting only the distinct ones).

The product of its digits is 1764, while the sum is 26.

The square root of 673712 is about 820.7996101364. The cubic root of 673712 is about 87.6647020303.

The spelling of 673712 in words is "six hundred seventy-three thousand, seven hundred twelve".