1938317 has 2 divisors, whose sum is σ = 1938318. Its totient is φ = 1938316.

The previous prime is 1938301. The next prime is 1938359. The reversal of 1938317 is 7138391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1865956 + 72361 = 1366^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1938317 - 2⁴ = 1938301 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 (1938367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969158 + 969159.

It is an arithmetic number, because the mean of its divisors is an integer number (969159).

2^1938317 is an apocalyptic number.

It is an amenable number.

1938317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938317 is an equidigital number, since it uses as much as digits as its factorization.

1938317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 1938317 is about 1392.2345348396. The cubic root of 1938317 is about 124.6832942575.

The spelling of 1938317 in words is "one million, nine hundred thirty-eight thousand, three hundred seventeen".