12916389 has 8 divisors (see below), whose sum is σ = 17336512. Its totient is φ = 8553600.

The previous prime is 12916373. The next prime is 12916417. The reversal of 12916389 is 98361921.

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

It is not a de Polignac number, because 12916389 - 2⁴ = 12916373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12916369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13804 + ... + 14709.

It is an arithmetic number, because the mean of its divisors is an integer number (2167064).

Almost surely, 2^12916389 is an apocalyptic number.

It is an amenable number.

12916389 is a deficient number, since it is larger than the sum of its proper divisors (4420123).

12916389 is a wasteful number, since it uses less digits than its factorization.

12916389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28667.

The product of its digits is 23328, while the sum is 39.

The square root of 12916389 is about 3593.9378124837. The cubic root of 12916389 is about 234.6282881650.

The spelling of 12916389 in words is "twelve million, nine hundred sixteen thousand, three hundred eighty-nine".