6723394491 has 8 divisors (see below), whose sum is σ = 9779482944. Its totient is φ = 4074784520.

The previous prime is 6723394451. The next prime is 6723394507. The reversal of 6723394491 is 1944933276.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6723394491 - 2¹⁷ = 6723263419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6723394491.

It is not an unprimeable number, because it can be changed into a prime (6723394411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101869581 + ... + 101869646.

It is an arithmetic number, because the mean of its divisors is an integer number (1222435368).

Almost surely, 2^6723394491 is an apocalyptic number.

6723394491 is a deficient number, since it is larger than the sum of its proper divisors (3056088453).

6723394491 is a wasteful number, since it uses less digits than its factorization.

6723394491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203739241.

The product of its digits is 979776, while the sum is 48.

The square root of 6723394491 is about 81996.3077888267. The cubic root of 6723394491 is about 1887.3952801045.

The spelling of 6723394491 in words is "six billion, seven hundred twenty-three million, three hundred ninety-four thousand, four hundred ninety-one".