7855116 has 12 divisors (see below), whose sum is σ = 18328632. Its totient is φ = 2618368.

The previous prime is 7855109. The next prime is 7855163. The reversal of 7855116 is 6115587.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 327285 + ... + 327308.

It is an arithmetic number, because the mean of its divisors is an integer number (1527386).

Almost surely, 2^7855116 is an apocalyptic number.

It is an amenable number.

7855116 is an abundant number, since it is smaller than the sum of its proper divisors (10473516).

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

7855116 is a wasteful number, since it uses less digits than its factorization.

7855116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654600 (or 654598 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

The square root of 7855116 is about 2802.6979858700. The cubic root of 7855116 is about 198.7852704305.

The spelling of 7855116 in words is "seven million, eight hundred fifty-five thousand, one hundred sixteen".