673320 has 64 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 172800.

The previous prime is 673313. The next prime is 673327. The reversal of 673320 is 23376.

It is an interprime number because it is at equal distance from previous prime (673313) and next prime (673327).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 673320.

It is not an unprimeable number, because it can be changed into a prime (673327) 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, 3630 + ... + 3810.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁶⁷³³²⁰ is an apocalyptic number.

673320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048320).

673320 is an abundant number, since it is smaller than the sum of its proper divisors (1423320).

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

673320 is a wasteful number, since it uses less digits than its factorization.

673320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 673320 is about 820.5607838546. The cubic root of 673320 is about 87.6476961334.

Adding to 673320 its reverse (23376), we get a palindrome (696696).

The spelling of 673320 in words is "six hundred seventy-three thousand, three hundred twenty".