8778660 has 96 divisors (see below), whose sum is σ = 27482112. Its totient is φ = 2075520.

The previous prime is 8778643. The next prime is 8778667. The reversal of 8778660 is 668778.

8778660 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8778667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30879 + ... + 31161.

It is an arithmetic number, because the mean of its divisors is an integer number (286272).

Almost surely, 2^8778660 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 8778660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13741056).

8778660 is an abundant number, since it is smaller than the sum of its proper divisors (18703452).

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

8778660 is a wasteful number, since it uses less digits than its factorization.

8778660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 8778660 is about 2962.8803553299. The cubic root of 8778660 is about 206.2890027250.

The spelling of 8778660 in words is "eight million, seven hundred seventy-eight thousand, six hundred sixty".