40000717 has 2 divisors, whose sum is σ = 40000718. Its totient is φ = 40000716.

The previous prime is 40000691. The next prime is 40000721. The reversal of 40000717 is 71700004.

40000717 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 can be written as a sum of positive squares in only one way, i.e., 39702601 + 298116 = 6301^2 + 546^2 .

It is a cyclic number.

It is not a de Polignac number, because 40000717 - 2²³ = 31612109 is a prime.

40000717 is a modest number, since divided by 717 gives 4 as remainder.

It is equal to p_2433700 and since 40000717 and 2433700 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 40000694 and 40000703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40000217) 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, 20000358 + 20000359.

It is an arithmetic number, because the mean of its divisors is an integer number (20000359).

Almost surely, 2^40000717 is an apocalyptic number.

It is an amenable number.

40000717 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000717 is an equidigital number, since it uses as much as digits as its factorization.

40000717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 40000717 is about 6324.6120039098. The cubic root of 40000717 is about 341.9972327444.

The spelling of 40000717 in words is "forty million, seven hundred seventeen", and thus it is an aban number.