7878116 has 24 divisors (see below), whose sum is σ = 14244384. Its totient is φ = 3810240.

The previous prime is 7878097. The next prime is 7878139. The reversal of 7878116 is 6118787.

7878116 is nontrivially palindromic in base 11.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7878116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27896 + ... + 28176.

It is an arithmetic number, because the mean of its divisors is an integer number (593516).

Almost surely, 2^7878116 is an apocalyptic number.

It is an amenable number.

7878116 is a deficient number, since it is larger than the sum of its proper divisors (6366268).

7878116 is a wasteful number, since it uses less digits than its factorization.

7878116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 489 counting only the distinct ones).

The product of its digits is 18816, while the sum is 38.

The square root of 7878116 is about 2806.7981758580. The cubic root of 7878116 is about 198.9790976589.

The spelling of 7878116 in words is "seven million, eight hundred seventy-eight thousand, one hundred sixteen".