12878922 has 32 divisors (see below), whose sum is σ = 30988800. Its totient is φ = 3485808.

The previous prime is 12878891. The next prime is 12878927. The reversal of 12878922 is 22987821.

It is not an unprimeable number, because it can be changed into a prime (12878927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7272 + ... + 8867.

It is an arithmetic number, because the mean of its divisors is an integer number (968400).

Almost surely, 2^12878922 is an apocalyptic number.

12878922 is an abundant number, since it is smaller than the sum of its proper divisors (18109878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12878922 is a wasteful number, since it uses less digits than its factorization.

12878922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16170.

The product of its digits is 32256, while the sum is 39.

The square root of 12878922 is about 3588.7214993644. The cubic root of 12878922 is about 234.4012037547.

The spelling of 12878922 in words is "twelve million, eight hundred seventy-eight thousand, nine hundred twenty-two".