673436 has 12 divisors (see below), whose sum is σ = 1240680. Its totient is φ = 318960.

The previous prime is 673429. The next prime is 673441. The reversal of 673436 is 634376.

It is a junction number, because it is equal to n+sod(n) for n = 673399 and 673408.

It is a congruent number.

It is an unprimeable number.

673436 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 3 ways as a sum of consecutive naturals, for example, 4355 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (103390).

2⁶⁷³⁴³⁶ is an apocalyptic number.

It is an amenable number.

673436 is a deficient number, since it is larger than the sum of its proper divisors (567244).

673436 is a wasteful number, since it uses less digits than its factorization.

673436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884 (or 8882 counting only the distinct ones).

The product of its digits is 9072, while the sum is 29.

The square root of 673436 is about 820.6314641787. The cubic root of 673436 is about 87.6527291781.

Subtracting from 673436 its reverse (634376), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 673436 in words is "six hundred seventy-three thousand, four hundred thirty-six".