4105643 has 4 divisors (see below), whose sum is σ = 4135320. Its totient is φ = 4075968.

The previous prime is 4105639. The next prime is 4105657. The reversal of 4105643 is 3465014.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4105643 - 2² = 4105639 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4105613) 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, 14630 + ... + 14907.

It is an arithmetic number, because the mean of its divisors is an integer number (1033830).

Almost surely, 2^4105643 is an apocalyptic number.

4105643 is a deficient number, since it is larger than the sum of its proper divisors (29677).

4105643 is a wasteful number, since it uses less digits than its factorization.

4105643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29676.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 4105643 is about 2026.2386335277. The cubic root of 4105643 is about 160.1254614915.

The spelling of 4105643 in words is "four million, one hundred five thousand, six hundred forty-three".