41999987 has 2 divisors, whose sum is σ = 41999988. Its totient is φ = 41999986.

The previous prime is 41999977. The next prime is 42000011. The reversal of 41999987 is 78999914.

41999987 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 is a cyclic number.

It is not a de Polignac number, because 41999987 - 2⁸ = 41999731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41999957) 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, 20999993 + 20999994.

It is an arithmetic number, because the mean of its divisors is an integer number (20999994).

Almost surely, 2^41999987 is an apocalyptic number.

41999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

41999987 is an equidigital number, since it uses as much as digits as its factorization.

41999987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 56.

The square root of 41999987 is about 6480.7396954360. The cubic root of 41999987 is about 347.6026286249.

It can be divided in two parts, 4 and 1999987, that added together give a palindrome (1999991).

The spelling of 41999987 in words is "forty-one million, nine hundred ninety-nine thousand, nine hundred eighty-seven".