708161 has 2 divisors, whose sum is σ = 708162. Its totient is φ = 708160.

The previous prime is 708139. The next prime is 708163. The reversal of 708161 is 161807.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 323761 = 620^2 + 569^2 .

It is an emirp because it is prime and its reverse (161807) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-708161 is a prime.

Together with 708163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (708163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354080 + 354081.

It is an arithmetic number, because the mean of its divisors is an integer number (354081).

2⁷⁰⁸¹⁶¹ is an apocalyptic number.

It is an amenable number.

708161 is a deficient number, since it is larger than the sum of its proper divisors (1).

708161 is an equidigital number, since it uses as much as digits as its factorization.

708161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 708161 is about 841.5230240463. The cubic root of 708161 is about 89.1341242453.

Adding to 708161 its reverse (161807), we get a palindrome (869968).

The spelling of 708161 in words is "seven hundred eight thousand, one hundred sixty-one".