673546 has 4 divisors (see below), whose sum is σ = 1010322. Its totient is φ = 336772.

The previous prime is 673529. The next prime is 673549. The reversal of 673546 is 645376.

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

It can be written as a sum of positive squares in only one way, i.e., 408321 + 265225 = 639^2 + 515^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168385 + ... + 168388.

2⁶⁷³⁵⁴⁶ is an apocalyptic number.

673546 is a deficient number, since it is larger than the sum of its proper divisors (336776).

673546 is a wasteful number, since it uses less digits than its factorization.

673546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336775.

The product of its digits is 15120, while the sum is 31.

The square root of 673546 is about 820.6984830009. The cubic root of 673546 is about 87.6575013590.

The spelling of 673546 in words is "six hundred seventy-three thousand, five hundred forty-six".