7875816 has 32 divisors (see below), whose sum is σ = 21204960. Its totient is φ = 2423232.

The previous prime is 7875799. The next prime is 7875827. The reversal of 7875816 is 6185787.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12310 + ... + 12933.

It is an arithmetic number, because the mean of its divisors is an integer number (662655).

Almost surely, 2^7875816 is an apocalyptic number.

It is an amenable number.

7875816 is an abundant number, since it is smaller than the sum of its proper divisors (13329144).

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

7875816 is a wasteful number, since it uses less digits than its factorization.

7875816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25265 (or 25261 counting only the distinct ones).

The product of its digits is 94080, while the sum is 42.

The square root of 7875816 is about 2806.3884264300. The cubic root of 7875816 is about 198.9597319261.

The spelling of 7875816 in words is "seven million, eight hundred seventy-five thousand, eight hundred sixteen".