40094917 has 2 divisors, whose sum is σ = 40094918. Its totient is φ = 40094916.

The previous prime is 40094909. The next prime is 40094941. The reversal of 40094917 is 71949004.

40094917 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 can be written as a sum of positive squares in only one way, i.e., 39955041 + 139876 = 6321^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 40094917 - 2³ = 40094909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40094947) 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, 20047458 + 20047459.

It is an arithmetic number, because the mean of its divisors is an integer number (20047459).

Almost surely, 2^40094917 is an apocalyptic number.

It is an amenable number.

40094917 is a deficient number, since it is larger than the sum of its proper divisors (1).

40094917 is an equidigital number, since it uses as much as digits as its factorization.

40094917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 40094917 is about 6332.0547218103. The cubic root of 40094917 is about 342.2654852955.

The spelling of 40094917 in words is "forty million, ninety-four thousand, nine hundred seventeen".