716687 has 2 divisors, whose sum is σ = 716688. Its totient is φ = 716686.

The previous prime is 716671. The next prime is 716693. The reversal of 716687 is 786617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 716687 - 2⁴ = 716671 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 716687.

It is not a weakly prime, because it can be changed into another prime (716087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358343 + 358344.

It is an arithmetic number, because the mean of its divisors is an integer number (358344).

2⁷¹⁶⁶⁸⁷ is an apocalyptic number.

716687 is a deficient number, since it is larger than the sum of its proper divisors (1).

716687 is an equidigital number, since it uses as much as digits as its factorization.

716687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 716687 is about 846.5736825581. The cubic root of 716687 is about 89.4904122975.

The spelling of 716687 in words is "seven hundred sixteen thousand, six hundred eighty-seven".