12719939 has 8 divisors (see below), whose sum is σ = 13099008. Its totient is φ = 12345480.

The previous prime is 12719933. The next prime is 12719977. The reversal of 12719939 is 93991721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12719939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12719896 and 12719905.

It is not an unprimeable number, because it can be changed into a prime (12719933) 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, 4904 + ... + 7034.

It is an arithmetic number, because the mean of its divisors is an integer number (1637376).

Almost surely, 2^12719939 is an apocalyptic number.

12719939 is a deficient number, since it is larger than the sum of its proper divisors (379069).

12719939 is a wasteful number, since it uses less digits than its factorization.

12719939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305.

The product of its digits is 30618, while the sum is 41.

The square root of 12719939 is about 3566.5023482398. The cubic root of 12719939 is about 233.4326907924.

The spelling of 12719939 in words is "twelve million, seven hundred nineteen thousand, nine hundred thirty-nine".