8623641 has 16 divisors (see below), whose sum is σ = 13112064. Its totient is φ = 4994304.

The previous prime is 8623639. The next prime is 8623651. The reversal of 8623641 is 1463268.

It is not a de Polignac number, because 8623641 - 2¹ = 8623639 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8623599 and 8623608.

It is not an unprimeable number, because it can be changed into a prime (8623621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5841 + ... + 7166.

It is an arithmetic number, because the mean of its divisors is an integer number (819504).

Almost surely, 2^8623641 is an apocalyptic number.

It is an amenable number.

8623641 is a deficient number, since it is larger than the sum of its proper divisors (4488423).

8623641 is a wasteful number, since it uses less digits than its factorization.

8623641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13040.

The product of its digits is 6912, while the sum is 30.

The square root of 8623641 is about 2936.6036504779. The cubic root of 8623641 is about 205.0675248506.

The spelling of 8623641 in words is "eight million, six hundred twenty-three thousand, six hundred forty-one".