41999 has 2 divisors, whose sum is σ = 42000. Its totient is φ = 41998.

The previous prime is 41983. The next prime is 42013. The reversal of 41999 is 99914.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41999 - 2⁴ = 41983 is a prime.

It is a Chen prime.

41999 is a modest number, since divided by 999 gives 41 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20999 + 21000.

It is an arithmetic number, because the mean of its divisors is an integer number (21000).

2⁴¹⁹⁹⁹ is an apocalyptic number.

41999 is a deficient number, since it is larger than the sum of its proper divisors (1).

41999 is an equidigital number, since it uses as much as digits as its factorization.

41999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 32.

The square root of 41999 is about 204.9365755545. The cubic root of 41999 is about 34.7599905715.

The spelling of 41999 in words is "forty-one thousand, nine hundred ninety-nine".