673620 has 48 divisors (see below), whose sum is σ = 1921920. Its totient is φ = 176256.

The previous prime is 673619. The next prime is 673637. The reversal of 673620 is 26376.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6126 + ... + 6234.

It is an arithmetic number, because the mean of its divisors is an integer number (40040).

2⁶⁷³⁶²⁰ is an apocalyptic number.

673620 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 673620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960960).

673620 is an abundant number, since it is smaller than the sum of its proper divisors (1248300).

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

673620 is a wasteful number, since it uses less digits than its factorization.

673620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 673620 is about 820.7435653114. The cubic root of 673620 is about 87.6607114429.

Adding to 673620 its reverse (26376), we get a palindrome (699996).

The spelling of 673620 in words is "six hundred seventy-three thousand, six hundred twenty".