12793855 has 16 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 9730080.

The previous prime is 12793849. The next prime is 12793871. The reversal of 12793855 is 55839721.

It is not a de Polignac number, because 12793855 - 2⁹ = 12793343 is a prime.

It is a super-2 number, since 2×12793855² = 327365451522050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8446 + ... + 9844.

It is an arithmetic number, because the mean of its divisors is an integer number (1008000).

Almost surely, 2^12793855 is an apocalyptic number.

12793855 is a deficient number, since it is larger than the sum of its proper divisors (3334145).

12793855 is a wasteful number, since it uses less digits than its factorization.

12793855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 75600, while the sum is 40.

The square root of 12793855 is about 3576.8498710458. The cubic root of 12793855 is about 233.8839795463.

The spelling of 12793855 in words is "twelve million, seven hundred ninety-three thousand, eight hundred fifty-five".