6673813 has 4 divisors (see below), whose sum is σ = 6799788. Its totient is φ = 6547840.

The previous prime is 6673789. The next prime is 6673847. The reversal of 6673813 is 3183766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3183766 = 2 ⋅1591883.

It can be written as a sum of positive squares in 2 ways, for example, as 1912689 + 4761124 = 1383^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 6673813 - 2²¹ = 4576661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6673613) 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, 62908 + ... + 63013.

It is an arithmetic number, because the mean of its divisors is an integer number (1699947).

Almost surely, 2^6673813 is an apocalyptic number.

It is an amenable number.

6673813 is a deficient number, since it is larger than the sum of its proper divisors (125975).

6673813 is a wasteful number, since it uses less digits than its factorization.

6673813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125974.

The product of its digits is 18144, while the sum is 34.

The square root of 6673813 is about 2583.3724083066. The cubic root of 6673813 is about 188.2744313325.

The spelling of 6673813 in words is "six million, six hundred seventy-three thousand, eight hundred thirteen".