12791005 has 16 divisors (see below), whose sum is σ = 15738624. Its totient is φ = 9976960.

The previous prime is 12790997. The next prime is 12791033. The reversal of 12791005 is 50019721.

12791005 = T₁₇₁ + T₁₇₂ + ... + T₄₃₃.

It is not a de Polignac number, because 12791005 - 2³ = 12790997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48504 + ... + 48766.

It is an arithmetic number, because the mean of its divisors is an integer number (983664).

Almost surely, 2^12791005 is an apocalyptic number.

It is an amenable number.

12791005 is a deficient number, since it is larger than the sum of its proper divisors (2947619).

12791005 is a wasteful number, since it uses less digits than its factorization.

12791005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12791005 is about 3576.4514536059. The cubic root of 12791005 is about 233.8666113425.

The spelling of 12791005 in words is "twelve million, seven hundred ninety-one thousand, five".