8670005 has 8 divisors (see below), whose sum is σ = 10600632. Its totient is φ = 6804928.

The previous prime is 8669993. The next prime is 8670007. The reversal of 8670005 is 5000768.

8670005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3467044 + 5202961 = 1862^2 + 2281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8670005 - 2⁴ = 8669989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8670007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16094 + ... + 16623.

It is an arithmetic number, because the mean of its divisors is an integer number (1325079).

Almost surely, 2^8670005 is an apocalyptic number.

It is an amenable number.

8670005 is a deficient number, since it is larger than the sum of its proper divisors (1930627).

8670005 is a wasteful number, since it uses less digits than its factorization.

8670005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32775.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 8670005 is about 2944.4872219115. The cubic root of 8670005 is about 205.4343754005.

The spelling of 8670005 in words is "eight million, six hundred seventy thousand, five".