12869873 has 2 divisors, whose sum is σ = 12869874. Its totient is φ = 12869872.

The previous prime is 12869861. The next prime is 12869891. The reversal of 12869873 is 37896821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7333264 + 5536609 = 2708^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 12869873 - 2⁶ = 12869809 is a prime.

It is a super-2 number, since 2×12869873² = 331267262072258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12869893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434936 + 6434937.

It is an arithmetic number, because the mean of its divisors is an integer number (6434937).

Almost surely, 2^12869873 is an apocalyptic number.

It is an amenable number.

12869873 is a deficient number, since it is larger than the sum of its proper divisors (1).

12869873 is an equidigital number, since it uses as much as digits as its factorization.

12869873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 12869873 is about 3587.4605224309. The cubic root of 12869873 is about 234.3462924957.

The spelling of 12869873 in words is "twelve million, eight hundred sixty-nine thousand, eight hundred seventy-three".