12798518 has 16 divisors (see below), whose sum is σ = 20533824. Its totient is φ = 5961600.

The previous prime is 12798509. The next prime is 12798547. The reversal of 12798518 is 81589721.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1571 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (1283364).

Almost surely, 2^12798518 is an apocalyptic number.

12798518 is a deficient number, since it is larger than the sum of its proper divisors (7735306).

12798518 is a wasteful number, since it uses less digits than its factorization.

12798518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847.

The product of its digits is 40320, while the sum is 41.

The square root of 12798518 is about 3577.5016422079. The cubic root of 12798518 is about 233.9123908038.

The spelling of 12798518 in words is "twelve million, seven hundred ninety-eight thousand, five hundred eighteen".