8670643606 has 4 divisors (see below), whose sum is σ = 13005965412. Its totient is φ = 4335321802.

The previous prime is 8670643577. The next prime is 8670643607. The reversal of 8670643606 is 6063460768.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8670643607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2167660900 + ... + 2167660903.

It is an arithmetic number, because the mean of its divisors is an integer number (3251491353).

Almost surely, 2^8670643606 is an apocalyptic number.

8670643606 is a deficient number, since it is larger than the sum of its proper divisors (4335321806).

8670643606 is a wasteful number, since it uses less digits than its factorization.

8670643606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335321805.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 8670643606 is about 93116.2907659020. The cubic root of 8670643606 is about 2054.3941916552.

The spelling of 8670643606 in words is "eight billion, six hundred seventy million, six hundred forty-three thousand, six hundred six".