41637689 has 2 divisors, whose sum is σ = 41637690. Its totient is φ = 41637688.

The previous prime is 41637679. The next prime is 41637731. The reversal of 41637689 is 98673614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 2199289 = 6280^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 41637689 - 2²⁰ = 40589113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41637679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20818844 + 20818845.

It is an arithmetic number, because the mean of its divisors is an integer number (20818845).

Almost surely, 2^41637689 is an apocalyptic number.

It is an amenable number.

41637689 is a deficient number, since it is larger than the sum of its proper divisors (1).

41637689 is an equidigital number, since it uses as much as digits as its factorization.

41637689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 41637689 is about 6452.7272528753. The cubic root of 41637689 is about 346.6002505696.

The spelling of 41637689 in words is "forty-one million, six hundred thirty-seven thousand, six hundred eighty-nine".