12922078 has 12 divisors (see below), whose sum is σ = 20989368. Its totient is φ = 5963880.

The previous prime is 12922061. The next prime is 12922079. The reversal of 12922078 is 87022921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922079) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 18778 + ... + 19453.

It is an arithmetic number, because the mean of its divisors is an integer number (1749114).

Almost surely, 2^12922078 is an apocalyptic number.

12922078 is a deficient number, since it is larger than the sum of its proper divisors (8067290).

12922078 is a wasteful number, since it uses less digits than its factorization.

12922078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38259 (or 38246 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12922078 is about 3594.7291970328. The cubic root of 12922078 is about 234.6627303095.

Adding to 12922078 its reverse (87022921), we get a palindrome (99944999).

The spelling of 12922078 in words is "twelve million, nine hundred twenty-two thousand, seventy-eight".