716605 has 8 divisors (see below), whose sum is σ = 864864. Its totient is φ = 570000.

The previous prime is 716591. The next prime is 716621. The reversal of 716605 is 506617.

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

It is not a de Polignac number, because 716605 - 2⁷ = 716477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 716605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970 + ... + 1540.

It is an arithmetic number, because the mean of its divisors is an integer number (108108).

2⁷¹⁶⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

716605 is a deficient number, since it is larger than the sum of its proper divisors (148259).

716605 is a wasteful number, since it uses less digits than its factorization.

716605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 716605 is about 846.5252506571. The cubic root of 716605 is about 89.4869991415.

The spelling of 716605 in words is "seven hundred sixteen thousand, six hundred five".