673524 has 36 divisors (see below), whose sum is σ = 1739556. Its totient is φ = 219648.

The previous prime is 673513. The next prime is 673529. The reversal of 673524 is 425376.

It is a happy number.

673524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 381924 + 291600 = 618^2 + 540^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1732 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (48321).

2⁶⁷³⁵²⁴ 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 673524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869778).

673524 is an abundant number, since it is smaller than the sum of its proper divisors (1066032).

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

673524 is a wasteful number, since it uses less digits than its factorization.

673524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 411 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 673524 is about 820.6850796743. The cubic root of 673524 is about 87.6565469644.

It can be divided in two parts, 6 and 73524, that multiplied together give a palindrome (441144).

The spelling of 673524 in words is "six hundred seventy-three thousand, five hundred twenty-four".