673542 has 16 divisors (see below), whose sum is σ = 1496880. Its totient is φ = 224496.

The previous prime is 673529. The next prime is 673549. The reversal of 673542 is 245376.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 673542.

It is not an unprimeable number, because it can be changed into a prime (673549) by changing a digit.

673542 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 7 ways as a sum of consecutive naturals, for example, 6183 + ... + 6290.

It is an arithmetic number, because the mean of its divisors is an integer number (93555).

2⁶⁷³⁵⁴² is an apocalyptic number.

673542 is an abundant number, since it is smaller than the sum of its proper divisors (823338).

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

673542 is a wasteful number, since it uses less digits than its factorization.

673542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12484 (or 12478 counting only the distinct ones).

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

The square root of 673542 is about 820.6960460487. The cubic root of 673542 is about 87.6573278343.

The spelling of 673542 in words is "six hundred seventy-three thousand, five hundred forty-two".