41646623 has 2 divisors, whose sum is σ = 41646624. Its totient is φ = 41646622.

The previous prime is 41646601. The next prime is 41646641. The reversal of 41646623 is 32664614.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41646623 - 2¹⁰ = 41645599 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41646623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41646023) 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, 20823311 + 20823312.

It is an arithmetic number, because the mean of its divisors is an integer number (20823312).

Almost surely, 2^41646623 is an apocalyptic number.

41646623 is a deficient number, since it is larger than the sum of its proper divisors (1).

41646623 is an equidigital number, since it uses as much as digits as its factorization.

41646623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 41646623 is about 6453.4194811743. The cubic root of 41646623 is about 346.6250382501.

Subtracting from 41646623 its reverse (32664614), we obtain a square (8982009 = 2997²).

The spelling of 41646623 in words is "forty-one million, six hundred forty-six thousand, six hundred twenty-three".