673347813 has 4 divisors (see below), whose sum is σ = 897797088. Its totient is φ = 448898540.

The previous prime is 673347809. The next prime is 673347817. The reversal of 673347813 is 318743376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (673347809) and next prime (673347817).

It is a cyclic number.

It is not a de Polignac number, because 673347813 - 2² = 673347809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673347817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112224633 + ... + 112224638.

It is an arithmetic number, because the mean of its divisors is an integer number (224449272).

Almost surely, 2^673347813 is an apocalyptic number.

It is an amenable number.

673347813 is a deficient number, since it is larger than the sum of its proper divisors (224449275).

673347813 is a wasteful number, since it uses less digits than its factorization.

673347813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224449274.

The product of its digits is 254016, while the sum is 42.

The square root of 673347813 is about 25948.9462791844. The cubic root of 673347813 is about 876.4890294533.

The spelling of 673347813 in words is "six hundred seventy-three million, three hundred forty-seven thousand, eight hundred thirteen".