12817373 has 2 divisors, whose sum is σ = 12817374. Its totient is φ = 12817372.

The previous prime is 12817369. The next prime is 12817421. The reversal of 12817373 is 37371821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 6041764 = 2603^2 + 2458^2 .

It is an emirp because it is prime and its reverse (37371821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12817373 - 2² = 12817369 is a prime.

It is a super-2 number, since 2×12817373² = 328570101242258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12817073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6408686 + 6408687.

It is an arithmetic number, because the mean of its divisors is an integer number (6408687).

Almost surely, 2^12817373 is an apocalyptic number.

It is an amenable number.

12817373 is a deficient number, since it is larger than the sum of its proper divisors (1).

12817373 is an equidigital number, since it uses as much as digits as its factorization.

12817373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 12817373 is about 3580.1358912756. The cubic root of 12817373 is about 234.0272023798.

The spelling of 12817373 in words is "twelve million, eight hundred seventeen thousand, three hundred seventy-three".