40986317 has 2 divisors, whose sum is σ = 40986318. Its totient is φ = 40986316.

The previous prime is 40986307. The next prime is 40986403. The reversal of 40986317 is 71368904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40119556 + 866761 = 6334^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 40986317 - 2⁴ = 40986301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40986307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20493158 + 20493159.

It is an arithmetic number, because the mean of its divisors is an integer number (20493159).

Almost surely, 2^40986317 is an apocalyptic number.

It is an amenable number.

40986317 is a deficient number, since it is larger than the sum of its proper divisors (1).

40986317 is an equidigital number, since it uses as much as digits as its factorization.

40986317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 40986317 is about 6402.0556854810. The cubic root of 40986317 is about 344.7833604560.

The spelling of 40986317 in words is "forty million, nine hundred eighty-six thousand, three hundred seventeen".