8670605 has 4 divisors (see below), whose sum is σ = 10404732. Its totient is φ = 6936480.

The previous prime is 8670589. The next prime is 8670611. The reversal of 8670605 is 5060768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 6869641 = 1342^2 + 2621^2 .

It is not a de Polignac number, because 8670605 - 2⁴ = 8670589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867056 + ... + 867065.

It is an arithmetic number, because the mean of its divisors is an integer number (2601183).

Almost surely, 2^8670605 is an apocalyptic number.

It is an amenable number.

8670605 is a deficient number, since it is larger than the sum of its proper divisors (1734127).

8670605 is a wasteful number, since it uses less digits than its factorization.

8670605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734126.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 8670605 is about 2944.5891054611. The cubic root of 8670605 is about 205.4391142591.

The spelling of 8670605 in words is "eight million, six hundred seventy thousand, six hundred five".