673798 has 4 divisors (see below), whose sum is σ = 1010700. Its totient is φ = 336898.

The previous prime is 673793. The next prime is 673801. The reversal of 673798 is 897376.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 673798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673793) by changing a digit.

673798 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 as a sum of consecutive naturals, namely, 168448 + ... + 168451.

It is an arithmetic number, because the mean of its divisors is an integer number (252675).

2⁶⁷³⁷⁹⁸ is an apocalyptic number.

673798 is a deficient number, since it is larger than the sum of its proper divisors (336902).

673798 is a wasteful number, since it uses less digits than its factorization.

673798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336901.

The product of its digits is 63504, while the sum is 40.

The square root of 673798 is about 820.8519964037. The cubic root of 673798 is about 87.6684320334.

The spelling of 673798 in words is "six hundred seventy-three thousand, seven hundred ninety-eight".