12685433 has 2 divisors, whose sum is σ = 12685434. Its totient is φ = 12685432.

The previous prime is 12685427. The next prime is 12685447. The reversal of 12685433 is 33458621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11916304 + 769129 = 3452^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 12685433 - 2¹⁰ = 12684409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12685433.

It is not a weakly prime, because it can be changed into another prime (12685033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342716 + 6342717.

It is an arithmetic number, because the mean of its divisors is an integer number (6342717).

Almost surely, 2^12685433 is an apocalyptic number.

It is an amenable number.

12685433 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685433 is an equidigital number, since it uses as much as digits as its factorization.

12685433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 12685433 is about 3561.6615504565. The cubic root of 12685433 is about 233.2214182121.

The spelling of 12685433 in words is "twelve million, six hundred eighty-five thousand, four hundred thirty-three".