40864127 has 2 divisors, whose sum is σ = 40864128. Its totient is φ = 40864126.

The previous prime is 40864091. The next prime is 40864129. The reversal of 40864127 is 72146804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40864127 - 2¹² = 40860031 is a prime.

Together with 40864129, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40864093 and 40864102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40864129) 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, 20432063 + 20432064.

It is an arithmetic number, because the mean of its divisors is an integer number (20432064).

Almost surely, 2^40864127 is an apocalyptic number.

40864127 is a deficient number, since it is larger than the sum of its proper divisors (1).

40864127 is an equidigital number, since it uses as much as digits as its factorization.

40864127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40864127 is about 6392.5055338263. The cubic root of 40864127 is about 344.4403922250.

The spelling of 40864127 in words is "forty million, eight hundred sixty-four thousand, one hundred twenty-seven".