716857 has 2 divisors, whose sum is σ = 716858. Its totient is φ = 716856.

The previous prime is 716827. The next prime is 716861. The reversal of 716857 is 758617.

716857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 249001 = 684^2 + 499^2 .

It is an emirp because it is prime and its reverse (758617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 716857 - 2¹¹ = 714809 is a prime.

It is not a weakly prime, because it can be changed into another prime (716827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358428 + 358429.

It is an arithmetic number, because the mean of its divisors is an integer number (358429).

2⁷¹⁶⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

716857 is a deficient number, since it is larger than the sum of its proper divisors (1).

716857 is an equidigital number, since it uses as much as digits as its factorization.

716857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 34.

The square root of 716857 is about 846.6740813324. The cubic root of 716857 is about 89.4974875235.

It can be divided in two parts, 7168 and 57, that added together give a square (7225 = 85²).

The spelling of 716857 in words is "seven hundred sixteen thousand, eight hundred fifty-seven".