12709775 has 12 divisors (see below), whose sum is σ = 16972872. Its totient is φ = 9385440.

The previous prime is 12709747. The next prime is 12709789. The reversal of 12709775 is 57790721.

It is not a de Polignac number, because 12709775 - 2¹⁶ = 12644239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19229 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (1414406).

Almost surely, 2^12709775 is an apocalyptic number.

12709775 is a deficient number, since it is larger than the sum of its proper divisors (4263097).

12709775 is a wasteful number, since it uses less digits than its factorization.

12709775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39130 (or 39125 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 12709775 is about 3565.0771380154. The cubic root of 12709775 is about 233.3704986152.

The spelling of 12709775 in words is "twelve million, seven hundred nine thousand, seven hundred seventy-five".