8709641 has 8 divisors (see below), whose sum is σ = 8981568. Its totient is φ = 8442000.

The previous prime is 8709611. The next prime is 8709647. The reversal of 8709641 is 1469078.

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 8709641 - 2¹⁰ = 8708617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8709647) 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, 3326 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1122696).

Almost surely, 2^8709641 is an apocalyptic number.

It is an amenable number.

8709641 is a deficient number, since it is larger than the sum of its proper divisors (271927).

8709641 is a wasteful number, since it uses less digits than its factorization.

8709641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 8709641 is about 2951.2100907933. The cubic root of 8709641 is about 205.7469557672.

The spelling of 8709641 in words is "eight million, seven hundred nine thousand, six hundred forty-one".