41663491 has 4 divisors (see below), whose sum is σ = 41727184. Its totient is φ = 41599800.

The previous prime is 41663483. The next prime is 41663497. The reversal of 41663491 is 19436614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19436614 = 2 ⋅9718307.

It is a cyclic number.

It is not a de Polignac number, because 41663491 - 2³ = 41663483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41663497) 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, 30855 + ... + 32176.

It is an arithmetic number, because the mean of its divisors is an integer number (10431796).

Almost surely, 2^41663491 is an apocalyptic number.

41663491 is a deficient number, since it is larger than the sum of its proper divisors (63693).

41663491 is an equidigital number, since it uses as much as digits as its factorization.

41663491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63692.

The product of its digits is 15552, while the sum is 34.

The square root of 41663491 is about 6454.7262529096. The cubic root of 41663491 is about 346.6718294144.

The spelling of 41663491 in words is "forty-one million, six hundred sixty-three thousand, four hundred ninety-one".