41569421 has 2 divisors, whose sum is σ = 41569422. Its totient is φ = 41569420.

The previous prime is 41569399. The next prime is 41569457. The reversal of 41569421 is 12496514.

41569421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38576521 + 2992900 = 6211^2 + 1730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41569421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41569921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20784710 + 20784711.

It is an arithmetic number, because the mean of its divisors is an integer number (20784711).

Almost surely, 2^41569421 is an apocalyptic number.

It is an amenable number.

41569421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41569421 is an equidigital number, since it uses as much as digits as its factorization.

41569421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 41569421 is about 6447.4352265067. The cubic root of 41569421 is about 346.4107215638.

The spelling of 41569421 in words is "forty-one million, five hundred sixty-nine thousand, four hundred twenty-one".