7882866 has 64 divisors (see below), whose sum is σ = 19215360. Its totient is φ = 2384640.

The previous prime is 7882841. The next prime is 7882871. The reversal of 7882866 is 6682887.

Its product of digits (258048) is a multiple of the sum of its prime factors (336).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28320 + ... + 28596.

It is an arithmetic number, because the mean of its divisors is an integer number (300240).

Almost surely, 2^7882866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7882866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9607680).

7882866 is an abundant number, since it is smaller than the sum of its proper divisors (11332494).

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

7882866 is a wasteful number, since it uses less digits than its factorization.

7882866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 330 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 7882866 is about 2807.6442082287. The cubic root of 7882866 is about 199.0190801802.

It can be divided in two parts, 78 and 82866, that added together give a square (82944 = 288²).

The spelling of 7882866 in words is "seven million, eight hundred eighty-two thousand, eight hundred sixty-six".