7868916 has 72 divisors (see below), whose sum is σ = 22434048. Its totient is φ = 2304000.

The previous prime is 7868897. The next prime is 7868923. The reversal of 7868916 is 6198687.

It is a happy number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 11956 + ... + 12596.

It is an arithmetic number, because the mean of its divisors is an integer number (311584).

Almost surely, 2^7868916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7868916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11217024).

7868916 is an abundant number, since it is smaller than the sum of its proper divisors (14565132).

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

7868916 is a wasteful number, since it uses less digits than its factorization.

7868916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 688 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 7868916 is about 2805.1588190332. The cubic root of 7868916 is about 198.9016120964.

The spelling of 7868916 in words is "seven million, eight hundred sixty-eight thousand, nine hundred sixteen".