716686 has 16 divisors (see below), whose sum is σ = 1154736. Its totient is φ = 332416.

The previous prime is 716671. The next prime is 716687. The reversal of 716686 is 686617.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3540 + ... + 3736.

It is an arithmetic number, because the mean of its divisors is an integer number (72171).

2⁷¹⁶⁶⁸⁶ is an apocalyptic number.

716686 is a deficient number, since it is larger than the sum of its proper divisors (438050).

716686 is a wasteful number, since it uses less digits than its factorization.

716686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its digits is 12096, while the sum is 34.

The square root of 716686 is about 846.5730919419. The cubic root of 716686 is about 89.4903706753.

The spelling of 716686 in words is "seven hundred sixteen thousand, six hundred eighty-six".