12939415 has 8 divisors (see below), whose sum is σ = 15548400. Its totient is φ = 10337472.

The previous prime is 12939391. The next prime is 12939449. The reversal of 12939415 is 51493921.

12939415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12939415 - 2⁵ = 12939383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4012 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (1943550).

Almost surely, 2^12939415 is an apocalyptic number.

12939415 is a deficient number, since it is larger than the sum of its proper divisors (2608985).

12939415 is a wasteful number, since it uses less digits than its factorization.

12939415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its digits is 9720, while the sum is 34.

The square root of 12939415 is about 3597.1398360364. The cubic root of 12939415 is about 234.7676290641.

The spelling of 12939415 in words is "twelve million, nine hundred thirty-nine thousand, four hundred fifteen".