41663809 has 12 divisors (see below), whose sum is σ = 46254208. Its totient is φ = 37497240.

The previous prime is 41663803. The next prime is 41663851. The reversal of 41663809 is 90836614.

It is not a de Polignac number, because 41663809 - 2⁷ = 41663681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41663803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10792 + ... + 14134.

Almost surely, 2^41663809 is an apocalyptic number.

It is an amenable number.

41663809 is a deficient number, since it is larger than the sum of its proper divisors (4590399).

41663809 is a wasteful number, since it uses less digits than its factorization.

41663809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468 (or 3457 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 41663809 is about 6454.7508859754. The cubic root of 41663809 is about 346.6727114125.

The spelling of 41663809 in words is "forty-one million, six hundred sixty-three thousand, eight hundred nine".