8670641 has 8 divisors (see below), whose sum is σ = 10096704. Its totient is φ = 7291440.

The previous prime is 8670637. The next prime is 8670653. The reversal of 8670641 is 1460768.

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 8670641 - 2² = 8670637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8670598 and 8670607.

It is not an unprimeable number, because it can be changed into a prime (8670611) 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, 11315 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (1262088).

Almost surely, 2^8670641 is an apocalyptic number.

It is an amenable number.

8670641 is a deficient number, since it is larger than the sum of its proper divisors (1426063).

8670641 is a wasteful number, since it uses less digits than its factorization.

8670641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23431.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8670641 is about 2944.5952183619. The cubic root of 8670641 is about 205.4393985836.

The spelling of 8670641 in words is "eight million, six hundred seventy thousand, six hundred forty-one".