673536 has 36 divisors (see below), whose sum is σ = 1794632. Its totient is φ = 224256.

The previous prime is 673529. The next prime is 673549. The reversal of 673536 is 635376.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

673536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330 + ... + 1206.

2⁶⁷³⁵³⁶ 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 673536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897316).

673536 is an abundant number, since it is smaller than the sum of its proper divisors (1121096).

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

673536 is an equidigital number, since it uses as much as digits as its factorization.

673536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 882 counting only the distinct ones).

The product of its digits is 11340, while the sum is 30.

The square root of 673536 is about 820.6923906069. The cubic root of 673536 is about 87.6570675459.

The spelling of 673536 in words is "six hundred seventy-three thousand, five hundred thirty-six".