6723683405 has 4 divisors (see below), whose sum is σ = 8068420092. Its totient is φ = 5378946720.

The previous prime is 6723683381. The next prime is 6723683429. The reversal of 6723683405 is 5043863276.

6723683405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (6723683381) and next prime (6723683429).

It can be written as a sum of positive squares in 2 ways, for example, as 3266008201 + 3457675204 = 57149^2 + 58802^2 .

It is not a de Polignac number, because 6723683405 - 2²⁰ = 6722634829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 672368336 + ... + 672368345.

It is an arithmetic number, because the mean of its divisors is an integer number (2017105023).

Almost surely, 2^6723683405 is an apocalyptic number.

It is an amenable number.

6723683405 is a deficient number, since it is larger than the sum of its proper divisors (1344736687).

6723683405 is a wasteful number, since it uses less digits than its factorization.

6723683405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344736686.

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 6723683405 is about 81998.0695199588. The cubic root of 6723683405 is about 1887.4223144203.

The spelling of 6723683405 in words is "six billion, seven hundred twenty-three million, six hundred eighty-three thousand, four hundred five".