70717 has 2 divisors, whose sum is σ = 70718. Its totient is φ = 70716.

The previous prime is 70709. The next prime is 70729. The reversal of 70717 is 71707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60516 + 10201 = 246^2 + 101^2 .

It is an emirp because it is prime and its reverse (71707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70717 - 2³ = 70709 is a prime.

70717 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35358 + 35359.

It is an arithmetic number, because the mean of its divisors is an integer number (35359).

2⁷⁰⁷¹⁷ is an apocalyptic number.

It is an amenable number.

70717 is a deficient number, since it is larger than the sum of its proper divisors (1).

70717 is an equidigital number, since it uses as much as digits as its factorization.

70717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 343, while the sum is 22.

The square root of 70717 is about 265.9266816248. The cubic root of 70717 is about 41.3530877362.

Subtracting 70717 from its reverse (71707), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 70 and 717, that added together give a palindrome (787).

The spelling of 70717 in words is "seventy thousand, seven hundred seventeen", and thus it is an iban number.