12693009 has 24 divisors (see below), whose sum is σ = 19954560. Its totient is φ = 7154784.

The previous prime is 12693001. The next prime is 12693013. The reversal of 12693009 is 90039621.

It is not a de Polignac number, because 12693009 - 2³ = 12693001 is a prime.

It is a super-2 number, since 2×12693009² = 322224954948162, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12693001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11067 + ... + 12159.

It is an arithmetic number, because the mean of its divisors is an integer number (831440).

Almost surely, 2^12693009 is an apocalyptic number.

It is an amenable number.

12693009 is a deficient number, since it is larger than the sum of its proper divisors (7261551).

12693009 is a wasteful number, since it uses less digits than its factorization.

12693009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 12693009 is about 3562.7249402669. The cubic root of 12693009 is about 233.2678371726.

It can be divided in two parts, 1269 and 3009, that added together give a triangular number (4278 = T₉₂).

The spelling of 12693009 in words is "twelve million, six hundred ninety-three thousand, nine".