716489 has 4 divisors (see below), whose sum is σ = 720324. Its totient is φ = 712656.

The previous prime is 716483. The next prime is 716491. The reversal of 716489 is 984617.

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

It can be written as a sum of positive squares in 2 ways, for example, as 366025 + 350464 = 605^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 716489 - 2¹⁶ = 650953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716483) 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, 1622 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (180081).

2⁷¹⁶⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

716489 is a deficient number, since it is larger than the sum of its proper divisors (3835).

716489 is a wasteful number, since it uses less digits than its factorization.

716489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834.

The product of its digits is 12096, while the sum is 35.

The square root of 716489 is about 846.4567325032. The cubic root of 716489 is about 89.4821703297.

The spelling of 716489 in words is "seven hundred sixteen thousand, four hundred eighty-nine".