8709705 has 12 divisors (see below), whose sum is σ = 15096900. Its totient is φ = 4645152.

The previous prime is 8709697. The next prime is 8709713. The reversal of 8709705 is 5079078.

It is an interprime number because it is at equal distance from previous prime (8709697) and next prime (8709713).

It can be written as a sum of positive squares in 2 ways, for example, as 5294601 + 3415104 = 2301^2 + 1848^2 .

It is not a de Polignac number, because 8709705 - 2³ = 8709697 is a prime.

It is a super-2 number, since 2×8709705² = 151717922374050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8709705.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96730 + ... + 96819.

It is an arithmetic number, because the mean of its divisors is an integer number (1258075).

Almost surely, 2^8709705 is an apocalyptic number.

It is an amenable number.

8709705 is a deficient number, since it is larger than the sum of its proper divisors (6387195).

8709705 is a wasteful number, since it uses less digits than its factorization.

8709705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193560 (or 193557 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 8709705 is about 2951.2209337832. The cubic root of 8709705 is about 205.7474597211.

The spelling of 8709705 in words is "eight million, seven hundred nine thousand, seven hundred five".