12853817 has 2 divisors, whose sum is σ = 12853818. Its totient is φ = 12853816.

The previous prime is 12853807. The next prime is 12853843. The reversal of 12853817 is 71835821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7929856 + 4923961 = 2816^2 + 2219^2 .

It is a cyclic number.

It is not a de Polignac number, because 12853817 - 2¹⁰ = 12852793 is a prime.

It is a super-2 number, since 2×12853817² = 330441222938978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12853807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6426908 + 6426909.

It is an arithmetic number, because the mean of its divisors is an integer number (6426909).

Almost surely, 2^12853817 is an apocalyptic number.

It is an amenable number.

12853817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12853817 is an equidigital number, since it uses as much as digits as its factorization.

12853817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 12853817 is about 3585.2220293867. Note that the first 3 decimals coincide. The cubic root of 12853817 is about 234.2487978823.

The spelling of 12853817 in words is "twelve million, eight hundred fifty-three thousand, eight hundred seventeen".