1973317 has 2 divisors, whose sum is σ = 1973318. Its totient is φ = 1973316.

The previous prime is 1973299. The next prime is 1973339. The reversal of 1973317 is 7133791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1331716 + 641601 = 1154^2 + 801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1973317 is a prime.

1973317 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986658 + 986659.

It is an arithmetic number, because the mean of its divisors is an integer number (986659).

2^1973317 is an apocalyptic number.

It is an amenable number.

1973317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973317 is an equidigital number, since it uses as much as digits as its factorization.

1973317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3969, while the sum is 31.

The square root of 1973317 is about 1404.7480201089. The cubic root of 1973317 is about 125.4292866825.

The spelling of 1973317 in words is "one million, nine hundred seventy-three thousand, three hundred seventeen".