41963821 has 2 divisors, whose sum is σ = 41963822. Its totient is φ = 41963820.

The previous prime is 41963819. The next prime is 41963827. The reversal of 41963821 is 12836914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21261321 + 20702500 = 4611^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 41963821 - 2¹ = 41963819 is a prime.

Together with 41963819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41963827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20981910 + 20981911.

It is an arithmetic number, because the mean of its divisors is an integer number (20981911).

Almost surely, 2^41963821 is an apocalyptic number.

It is an amenable number.

41963821 is a deficient number, since it is larger than the sum of its proper divisors (1).

41963821 is an equidigital number, since it uses as much as digits as its factorization.

41963821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 41963821 is about 6477.9488265963. The cubic root of 41963821 is about 347.5028269528.

The spelling of 41963821 in words is "forty-one million, nine hundred sixty-three thousand, eight hundred twenty-one".