8624641 has 4 divisors (see below), whose sum is σ = 8808192. Its totient is φ = 8441092.

The previous prime is 8624633. The next prime is 8624669. The reversal of 8624641 is 1464268.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8624641 - 2³ = 8624633 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8624621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91705 + ... + 91798.

It is an arithmetic number, because the mean of its divisors is an integer number (2202048).

Almost surely, 2^8624641 is an apocalyptic number.

It is an amenable number.

8624641 is a deficient number, since it is larger than the sum of its proper divisors (183551).

8624641 is a wasteful number, since it uses less digits than its factorization.

8624641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183550.

The product of its digits is 9216, while the sum is 31.

The square root of 8624641 is about 2936.7739102628. The cubic root of 8624641 is about 205.0754511081.

The spelling of 8624641 in words is "eight million, six hundred twenty-four thousand, six hundred forty-one".