41661047 has 2 divisors, whose sum is σ = 41661048. Its totient is φ = 41661046.

The previous prime is 41661029. The next prime is 41661071. The reversal of 41661047 is 74016614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41661047 - 2¹⁴ = 41644663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41661097) 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 as a sum of consecutive naturals, namely, 20830523 + 20830524.

It is an arithmetic number, because the mean of its divisors is an integer number (20830524).

Almost surely, 2^41661047 is an apocalyptic number.

41661047 is a deficient number, since it is larger than the sum of its proper divisors (1).

41661047 is an equidigital number, since it uses as much as digits as its factorization.

41661047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 41661047 is about 6454.5369314925. The cubic root of 41661047 is about 346.6650506376.

The spelling of 41661047 in words is "forty-one million, six hundred sixty-one thousand, forty-seven".