40959871 has 2 divisors, whose sum is σ = 40959872. Its totient is φ = 40959870.

The previous prime is 40959869. The next prime is 40959929. The reversal of 40959871 is 17895904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40959871 - 2¹ = 40959869 is a prime.

It is a super-2 number, since 2×40959871² = 3355422064673282, which contains 22 as substring.

Together with 40959869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40959071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20479935 + 20479936.

It is an arithmetic number, because the mean of its divisors is an integer number (20479936).

Almost surely, 2^40959871 is an apocalyptic number.

40959871 is a deficient number, since it is larger than the sum of its proper divisors (1).

40959871 is an equidigital number, since it uses as much as digits as its factorization.

40959871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 40959871 is about 6399.9899218671. The cubic root of 40959871 is about 344.7091885270.

The spelling of 40959871 in words is "forty million, nine hundred fifty-nine thousand, eight hundred seventy-one".