673863 has 16 divisors (see below), whose sum is σ = 969696. Its totient is φ = 414720.

The previous prime is 673837. The next prime is 673879. The reversal of 673863 is 368376.

It is a happy number.

It is not a de Polignac number, because 673863 - 2¹⁷ = 542791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3633 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (60606).

2⁶⁷³⁸⁶³ is an apocalyptic number.

673863 is a deficient number, since it is larger than the sum of its proper divisors (295833).

673863 is a wasteful number, since it uses less digits than its factorization.

673863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its digits is 18144, while the sum is 33.

The square root of 673863 is about 820.8915884573. The cubic root of 673863 is about 87.6712510112.

The spelling of 673863 in words is "six hundred seventy-three thousand, eight hundred sixty-three".