673730 has 16 divisors (see below), whose sum is σ = 1227960. Its totient is φ = 266112.

The previous prime is 673669. The next prime is 673747. The reversal of 673730 is 37376.

It can be written as a sum of positive squares in 4 ways, for example, as 477481 + 196249 = 691^2 + 443^2 .

It is a super-2 number, since 2×673730² = 907824225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 673730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512 + ... + 1268.

2⁶⁷³⁷³⁰ is an apocalyptic number.

673730 is a deficient number, since it is larger than the sum of its proper divisors (554230).

673730 is a wasteful number, since it uses less digits than its factorization.

673730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 673730 is about 820.8105749806. The cubic root of 673730 is about 87.6654827549.

The spelling of 673730 in words is "six hundred seventy-three thousand, seven hundred thirty".