6723394493 has 4 divisors (see below), whose sum is σ = 6723845088. Its totient is φ = 6722943900.

The previous prime is 6723394451. The next prime is 6723394507. The reversal of 6723394493 is 3944933276.

It is a happy number.

6723394493 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6723394493 - 2¹⁶ = 6723328957 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 (6723394393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202121 + ... + 233022.

It is an arithmetic number, because the mean of its divisors is an integer number (1680961272).

Almost surely, 2^6723394493 is an apocalyptic number.

It is an amenable number.

6723394493 is a deficient number, since it is larger than the sum of its proper divisors (450595).

6723394493 is a wasteful number, since it uses less digits than its factorization.

6723394493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450594.

The product of its digits is 2939328, while the sum is 50.

The square root of 6723394493 is about 81996.3078010224. The cubic root of 6723394493 is about 1887.3952802917.

The spelling of 6723394493 in words is "six billion, seven hundred twenty-three million, three hundred ninety-four thousand, four hundred ninety-three".