716789 has 2 divisors, whose sum is σ = 716790. Its totient is φ = 716788.

The previous prime is 716783. The next prime is 716809. The reversal of 716789 is 987617.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688900 + 27889 = 830^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 716789 - 2¹² = 712693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358394 + 358395.

It is an arithmetic number, because the mean of its divisors is an integer number (358395).

2⁷¹⁶⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

716789 is a deficient number, since it is larger than the sum of its proper divisors (1).

716789 is an equidigital number, since it uses as much as digits as its factorization.

716789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 38.

The square root of 716789 is about 846.6339232514. The cubic root of 716789 is about 89.4946575674.

The spelling of 716789 in words is "seven hundred sixteen thousand, seven hundred eighty-nine".