20174317 has 2 divisors, whose sum is σ = 20174318. Its totient is φ = 20174316.

The previous prime is 20174311. The next prime is 20174339. The reversal of 20174317 is 71347102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 1042441 = 4374^2 + 1021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20174317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20174291 and 20174300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20174311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10087158 + 10087159.

It is an arithmetic number, because the mean of its divisors is an integer number (10087159).

Almost surely, 2^20174317 is an apocalyptic number.

It is an amenable number.

20174317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20174317 is an equidigital number, since it uses as much as digits as its factorization.

20174317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 20174317 is about 4491.5829058362. The cubic root of 20174317 is about 272.2280967650.

The spelling of 20174317 in words is "twenty million, one hundred seventy-four thousand, three hundred seventeen".