40034987 has 2 divisors, whose sum is σ = 40034988. Its totient is φ = 40034986.

The previous prime is 40034963. The next prime is 40035007. The reversal of 40034987 is 78943004.

40034987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40034987 - 2⁶ = 40034923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40034947) 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, 20017493 + 20017494.

It is an arithmetic number, because the mean of its divisors is an integer number (20017494).

Almost surely, 2^40034987 is an apocalyptic number.

40034987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40034987 is an equidigital number, since it uses as much as digits as its factorization.

40034987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40034987 is about 6327.3206809834. The cubic root of 40034987 is about 342.0948718251.

The spelling of 40034987 in words is "forty million, thirty-four thousand, nine hundred eighty-seven".