12878822 has 16 divisors (see below), whose sum is σ = 21233232. Its totient is φ = 5809920.

The previous prime is 12878783. The next prime is 12878839. The reversal of 12878822 is 22887821.

It is a super-2 number, since 2×12878822² = 331728112215368, 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (1327077).

Almost surely, 2^12878822 is an apocalyptic number.

12878822 is a deficient number, since it is larger than the sum of its proper divisors (8354410).

12878822 is a wasteful number, since it uses less digits than its factorization.

12878822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423.

The product of its digits is 28672, while the sum is 38.

The square root of 12878822 is about 3588.7075667989. The cubic root of 12878822 is about 234.4005970740.

The spelling of 12878822 in words is "twelve million, eight hundred seventy-eight thousand, eight hundred twenty-two".