12963209 has 8 divisors (see below), whose sum is σ = 15215808. Its totient is φ = 10810800.

The previous prime is 12963173. The next prime is 12963229. The reversal of 12963209 is 90236921.

12963209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12963209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12963229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24767 + ... + 25284.

It is an arithmetic number, because the mean of its divisors is an integer number (1901976).

Almost surely, 2^12963209 is an apocalyptic number.

It is an amenable number.

12963209 is a deficient number, since it is larger than the sum of its proper divisors (2252599).

12963209 is an equidigital number, since it uses as much as digits as its factorization.

12963209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50095.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 12963209 is about 3600.4456668585. The cubic root of 12963209 is about 234.9114439231.

The spelling of 12963209 in words is "twelve million, nine hundred sixty-three thousand, two hundred nine".