41806721 has 8 divisors (see below), whose sum is σ = 46185600. Its totient is φ = 37524240.

The previous prime is 41806697. The next prime is 41806733. The reversal of 41806721 is 12760814.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41806721 - 2⁶ = 41806657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41809721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23186 + ... + 24923.

It is an arithmetic number, because the mean of its divisors is an integer number (5773200).

Almost surely, 2^41806721 is an apocalyptic number.

It is an amenable number.

41806721 is a deficient number, since it is larger than the sum of its proper divisors (4378879).

41806721 is a wasteful number, since it uses less digits than its factorization.

41806721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48199.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 41806721 is about 6465.8117046509. The cubic root of 41806721 is about 347.0686357766.

It can be divided in two parts, 4180 and 6721, that added together give a palindrome (10901).

The spelling of 41806721 in words is "forty-one million, eight hundred six thousand, seven hundred twenty-one".