8643941 has 2 divisors, whose sum is σ = 8643942. Its totient is φ = 8643940.

The previous prime is 8643923. The next prime is 8643953. The reversal of 8643941 is 1493468.

8643941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7043716 + 1600225 = 2654^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 8643941 - 2²² = 4449637 is a prime.

It is a super-2 number, since 2×8643941² = 149435432022962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8643991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321970 + 4321971.

It is an arithmetic number, because the mean of its divisors is an integer number (4321971).

Almost surely, 2^8643941 is an apocalyptic number.

It is an amenable number.

8643941 is a deficient number, since it is larger than the sum of its proper divisors (1).

8643941 is an equidigital number, since it uses as much as digits as its factorization.

8643941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 8643941 is about 2940.0579926253. The cubic root of 8643941 is about 205.2283080032.

The spelling of 8643941 in words is "eight million, six hundred forty-three thousand, nine hundred forty-one".