673512 has 64 divisors (see below), whose sum is σ = 2035200. Its totient is φ = 181440.

The previous prime is 673499. The next prime is 673513. The reversal of 673512 is 215376.

673512 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (673513) by changing a digit.

673512 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 15 ways as a sum of consecutive naturals, for example, 3087 + ... + 3297.

It is an arithmetic number, because the mean of its divisors is an integer number (31800).

2⁶⁷³⁵¹² 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 673512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017600).

673512 is an abundant number, since it is smaller than the sum of its proper divisors (1361688).

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

673512 is a wasteful number, since it uses less digits than its factorization.

673512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 242 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 673512 is about 820.6777686766. The cubic root of 673512 is about 87.6560263768.

Adding to 673512 its reverse (215376), we get a palindrome (888888).

The spelling of 673512 in words is "six hundred seventy-three thousand, five hundred twelve".