12691384 has 16 divisors (see below), whose sum is σ = 25196400. Its totient is φ = 5972352.

The previous prime is 12691381. The next prime is 12691387. The reversal of 12691384 is 48319621.

12691384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12691381) and next prime (12691387).

It is a super-3 number, since 3×12691384³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12691381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46524 + ... + 46795.

It is an arithmetic number, because the mean of its divisors is an integer number (1574775).

Almost surely, 2^12691384 is an apocalyptic number.

It is an amenable number.

12691384 is a deficient number, since it is larger than the sum of its proper divisors (12505016).

12691384 is a wasteful number, since it uses less digits than its factorization.

12691384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93342 (or 93338 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 12691384 is about 3562.4968771916. The cubic root of 12691384 is about 233.2578821806.

The spelling of 12691384 in words is "twelve million, six hundred ninety-one thousand, three hundred eighty-four".