12785399 has 8 divisors (see below), whose sum is σ = 14288400. Its totient is φ = 11339200.

The previous prime is 12785389. The next prime is 12785407. The reversal of 12785399 is 99358721.

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

It is a cyclic number.

It is not a de Polignac number, because 12785399 - 2¹² = 12781303 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 (12785369) 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, 13724 + ... + 14625.

It is an arithmetic number, because the mean of its divisors is an integer number (1786050).

Almost surely, 2^12785399 is an apocalyptic number.

12785399 is a deficient number, since it is larger than the sum of its proper divisors (1503001).

12785399 is a wasteful number, since it uses less digits than its factorization.

12785399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28401.

The product of its digits is 136080, while the sum is 44.

The square root of 12785399 is about 3575.6676299679. The cubic root of 12785399 is about 233.8324402511.

The spelling of 12785399 in words is "twelve million, seven hundred eighty-five thousand, three hundred ninety-nine".