7878412 has 12 divisors (see below), whose sum is σ = 14598360. Its totient is φ = 3707456.

The previous prime is 7878391. The next prime is 7878413. The reversal of 7878412 is 2148787.

It is not an unprimeable number, because it can be changed into a prime (7878413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 57862 + ... + 57997.

It is an arithmetic number, because the mean of its divisors is an integer number (1216530).

Almost surely, 2^7878412 is an apocalyptic number.

It is an amenable number.

7878412 is a deficient number, since it is larger than the sum of its proper divisors (6719948).

7878412 is a wasteful number, since it uses less digits than its factorization.

7878412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115880 (or 115878 counting only the distinct ones).

The product of its digits is 25088, while the sum is 37.

The square root of 7878412 is about 2806.8509044835. The cubic root of 7878412 is about 198.9815896708.

The spelling of 7878412 in words is "seven million, eight hundred seventy-eight thousand, four hundred twelve".