8578641 has 8 divisors (see below), whose sum is σ = 11453760. Its totient is φ = 5711312.

The previous prime is 8578639. The next prime is 8578651. The reversal of 8578641 is 1468758.

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 8578641 - 2¹ = 8578639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8578641.

It is not an unprimeable number, because it can be changed into a prime (8578651) 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, 1495 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (1431720).

Almost surely, 2^8578641 is an apocalyptic number.

It is an amenable number.

8578641 is a deficient number, since it is larger than the sum of its proper divisors (2875119).

8578641 is a wasteful number, since it uses less digits than its factorization.

8578641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895.

The product of its digits is 53760, while the sum is 39.

The square root of 8578641 is about 2928.9317165137. The cubic root of 8578641 is about 204.7102072316.

The spelling of 8578641 in words is "eight million, five hundred seventy-eight thousand, six hundred forty-one".