12289329 has 12 divisors (see below), whose sum is σ = 19116916. Its totient is φ = 7562592.

The previous prime is 12289327. The next prime is 12289339. The reversal of 12289329 is 92398221.

12289329 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 898704 + 11390625 = 948^2 + 3375^2 .

It is not a de Polignac number, because 12289329 - 2¹ = 12289327 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 12289293 and 12289302.

It is not an unprimeable number, because it can be changed into a prime (12289327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52402 + ... + 52635.

Almost surely, 2^12289329 is an apocalyptic number.

It is an amenable number.

12289329 is a deficient number, since it is larger than the sum of its proper divisors (6827587).

12289329 is a wasteful number, since it uses less digits than its factorization.

12289329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105056 (or 105053 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12289329 is about 3505.6139262617. The cubic root of 12289329 is about 230.7682501753.

The spelling of 12289329 in words is "twelve million, two hundred eighty-nine thousand, three hundred twenty-nine".