20067317 has 2 divisors, whose sum is σ = 20067318. Its totient is φ = 20067316.

The previous prime is 20067301. The next prime is 20067319. The reversal of 20067317 is 71376002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 654481 = 4406^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 20067317 - 2⁴ = 20067301 is a prime.

Together with 20067319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20067319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033658 + 10033659.

It is an arithmetic number, because the mean of its divisors is an integer number (10033659).

Almost surely, 2^20067317 is an apocalyptic number.

It is an amenable number.

20067317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20067317 is an equidigital number, since it uses as much as digits as its factorization.

20067317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 20067317 is about 4479.6559019639. The cubic root of 20067317 is about 271.7459646982.

The spelling of 20067317 in words is "twenty million, sixty-seven thousand, three hundred seventeen".