40667317 has 2 divisors, whose sum is σ = 40667318. Its totient is φ = 40667316.

The previous prime is 40667311. The next prime is 40667327. The reversal of 40667317 is 71376604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34586161 + 6081156 = 5881^2 + 2466^2 .

It is a cyclic number.

It is not a de Polignac number, because 40667317 - 2²³ = 32278709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40667311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20333658 + 20333659.

It is an arithmetic number, because the mean of its divisors is an integer number (20333659).

Almost surely, 2^40667317 is an apocalyptic number.

It is an amenable number.

40667317 is a deficient number, since it is larger than the sum of its proper divisors (1).

40667317 is an equidigital number, since it uses as much as digits as its factorization.

40667317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 40667317 is about 6377.0931465676. The cubic root of 40667317 is about 343.8865369672.

The spelling of 40667317 in words is "forty million, six hundred sixty-seven thousand, three hundred seventeen".