41006643 has 4 divisors (see below), whose sum is σ = 54675528. Its totient is φ = 27337760.

The previous prime is 41006639. The next prime is 41006657. The reversal of 41006643 is 34660014.

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 41006643 - 2² = 41006639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41006243) 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, 6834438 + ... + 6834443.

It is an arithmetic number, because the mean of its divisors is an integer number (13668882).

Almost surely, 2^41006643 is an apocalyptic number.

41006643 is a deficient number, since it is larger than the sum of its proper divisors (13668885).

41006643 is a wasteful number, since it uses less digits than its factorization.

41006643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668884.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 41006643 is about 6403.6429475729. The cubic root of 41006643 is about 344.8403462091.

Adding to 41006643 its reverse (34660014), we get a palindrome (75666657).

The spelling of 41006643 in words is "forty-one million, six thousand, six hundred forty-three".