40585717 has 2 divisors, whose sum is σ = 40585718. Its totient is φ = 40585716.

The previous prime is 40585711. The next prime is 40585747. The reversal of 40585717 is 71758504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31877316 + 8708401 = 5646^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 40585717 - 2¹⁵ = 40552949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40585711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20292858 + 20292859.

It is an arithmetic number, because the mean of its divisors is an integer number (20292859).

Almost surely, 2^40585717 is an apocalyptic number.

It is an amenable number.

40585717 is a deficient number, since it is larger than the sum of its proper divisors (1).

40585717 is an equidigital number, since it uses as much as digits as its factorization.

40585717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 40585717 is about 6370.6920346223. The cubic root of 40585717 is about 343.6563772804.

The spelling of 40585717 in words is "forty million, five hundred eighty-five thousand, seven hundred seventeen".