12695939 has 8 divisors (see below), whose sum is σ = 13284000. Its totient is φ = 12117952.

The previous prime is 12695911. The next prime is 12695959. The reversal of 12695939 is 93959621.

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-12695939 is a prime.

It is a super-2 number, since 2×12695939² = 322373734183442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12695939.

It is not an unprimeable number, because it can be changed into a prime (12695909) 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, 122 + ... + 5040.

It is an arithmetic number, because the mean of its divisors is an integer number (1660500).

Almost surely, 2^12695939 is an apocalyptic number.

12695939 is a deficient number, since it is larger than the sum of its proper divisors (588061).

12695939 is an equidigital number, since it uses as much as digits as its factorization.

12695939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5037.

The product of its digits is 131220, while the sum is 44.

The square root of 12695939 is about 3563.1361186460. The cubic root of 12695939 is about 233.2857846422.

The spelling of 12695939 in words is "twelve million, six hundred ninety-five thousand, nine hundred thirty-nine".