41381647 has 4 divisors (see below), whose sum is σ = 41406640. Its totient is φ = 41356656.

The previous prime is 41381633. The next prime is 41381653. The reversal of 41381647 is 74618314.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41381647 - 2¹⁹ = 40857359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41381657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9822 + ... + 13387.

It is an arithmetic number, because the mean of its divisors is an integer number (10351660).

Almost surely, 2^41381647 is an apocalyptic number.

41381647 is a deficient number, since it is larger than the sum of its proper divisors (24993).

41381647 is a wasteful number, since it uses less digits than its factorization.

41381647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24992.

The product of its digits is 16128, while the sum is 34.

The square root of 41381647 is about 6432.8568303670. The cubic root of 41381647 is about 345.8883414637. Note that the first 3 decimals are identical.

The spelling of 41381647 in words is "forty-one million, three hundred eighty-one thousand, six hundred forty-seven".