7878716 has 12 divisors (see below), whose sum is σ = 13850088. Its totient is φ = 3921552.

The previous prime is 7878713. The next prime is 7878721. The reversal of 7878716 is 6178787.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878713) 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, 3431 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (1154174).

Almost surely, 2^7878716 is an apocalyptic number.

It is an amenable number.

7878716 is a deficient number, since it is larger than the sum of its proper divisors (5971372).

7878716 is a wasteful number, since it uses less digits than its factorization.

7878716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8906 counting only the distinct ones).

The product of its digits is 131712, while the sum is 44.

The square root of 7878716 is about 2806.9050571760. The cubic root of 7878716 is about 198.9841489693.

The spelling of 7878716 in words is "seven million, eight hundred seventy-eight thousand, seven hundred sixteen".