716779 has 4 divisors (see below), whose sum is σ = 819184. Its totient is φ = 614376.

The previous prime is 716747. The next prime is 716783. The reversal of 716779 is 977617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977617 = 647 ⋅1511.

It is not a de Polignac number, because 716779 - 2⁵ = 716747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716789) 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, 51192 + ... + 51205.

It is an arithmetic number, because the mean of its divisors is an integer number (204796).

2⁷¹⁶⁷⁷⁹ is an apocalyptic number.

716779 is a deficient number, since it is larger than the sum of its proper divisors (102405).

716779 is a wasteful number, since it uses less digits than its factorization.

716779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102404.

The product of its digits is 18522, while the sum is 37.

The square root of 716779 is about 846.6280174906. The cubic root of 716779 is about 89.4942413822.

The spelling of 716779 in words is "seven hundred sixteen thousand, seven hundred seventy-nine".