673742 has 4 divisors (see below), whose sum is σ = 1010616. Its totient is φ = 336870.

The previous prime is 673669. The next prime is 673747. The reversal of 673742 is 247376.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168434 + ... + 168437.

It is an arithmetic number, because the mean of its divisors is an integer number (252654).

2⁶⁷³⁷⁴² is an apocalyptic number.

673742 is a deficient number, since it is larger than the sum of its proper divisors (336874).

673742 is a wasteful number, since it uses less digits than its factorization.

673742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336873.

The product of its digits is 7056, while the sum is 29.

The square root of 673742 is about 820.8178847954. The cubic root of 673742 is about 87.6660032302. Note that the first 3 decimals are identical.

It can be divided in two parts, 67374 and 2, that added together give a palindrome (67376).

The spelling of 673742 in words is "six hundred seventy-three thousand, seven hundred forty-two".