673563 has 8 divisors (see below), whose sum is σ = 979776. Its totient is φ = 408200.

The previous prime is 673553. The next prime is 673567. The reversal of 673563 is 365376.

673563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673563 - 2⁶ = 673499 is a prime.

It is a super-2 number, since 2×673563² = 907374229938, 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 673563.

It is not an unprimeable number, because it can be changed into a prime (673567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10173 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (122472).

2⁶⁷³⁵⁶³ is an apocalyptic number.

673563 is a deficient number, since it is larger than the sum of its proper divisors (306213).

673563 is a wasteful number, since it uses less digits than its factorization.

673563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20425.

The product of its digits is 11340, while the sum is 30.

The square root of 673563 is about 820.7088399670. The cubic root of 673563 is about 87.6582388315.

The spelling of 673563 in words is "six hundred seventy-three thousand, five hundred sixty-three".