40391327 has 2 divisors, whose sum is σ = 40391328. Its totient is φ = 40391326.

The previous prime is 40391317. The next prime is 40391339. The reversal of 40391327 is 72319304.

40391327 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 40391327 - 2⁴ = 40391311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40391327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40391317) 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, 20195663 + 20195664.

It is an arithmetic number, because the mean of its divisors is an integer number (20195664).

Almost surely, 2^40391327 is an apocalyptic number.

40391327 is a deficient number, since it is larger than the sum of its proper divisors (1).

40391327 is an equidigital number, since it uses as much as digits as its factorization.

40391327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 40391327 is about 6355.4171381586. The cubic root of 40391327 is about 343.1068382883.

The spelling of 40391327 in words is "forty million, three hundred ninety-one thousand, three hundred twenty-seven".