12915789 has 8 divisors (see below), whose sum is σ = 17439360. Its totient is φ = 8501376.

The previous prime is 12915757. The next prime is 12915803. The reversal of 12915789 is 98751921.

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

It is not a de Polignac number, because 12915789 - 2⁵ = 12915757 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12915789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915709) 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, 27012 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (2179920).

Almost surely, 2^12915789 is an apocalyptic number.

It is an amenable number.

12915789 is a deficient number, since it is larger than the sum of its proper divisors (4523571).

12915789 is an equidigital number, since it uses as much as digits as its factorization.

12915789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54579.

The product of its digits is 45360, while the sum is 42.

The square root of 12915789 is about 3593.8543376158. The cubic root of 12915789 is about 234.6246550765.

The spelling of 12915789 in words is "twelve million, nine hundred fifteen thousand, seven hundred eighty-nine".