723799 has 2 divisors, whose sum is σ = 723800. Its totient is φ = 723798.

The previous prime is 723797. The next prime is 723803. The reversal of 723799 is 997327.

It is a weak prime.

It is an emirp because it is prime and its reverse (997327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 723799 - 2¹ = 723797 is a prime.

Together with 723797, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 7⁴ + 2¹⁹ + 7⁶ + 3⁹ + 9³ + 9⁵ .

723799 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361899 + 361900.

It is an arithmetic number, because the mean of its divisors is an integer number (361900).

2⁷²³⁷⁹⁹ is an apocalyptic number.

723799 is a deficient number, since it is larger than the sum of its proper divisors (1).

723799 is an equidigital number, since it uses as much as digits as its factorization.

723799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 37.

The square root of 723799 is about 850.7637744991. The cubic root of 723799 is about 89.7854560501.

The spelling of 723799 in words is "seven hundred twenty-three thousand, seven hundred ninety-nine".