8779320 has 128 divisors (see below), whose sum is σ = 31968000. Its totient is φ = 2125440.

The previous prime is 8779319. The next prime is 8779321. The reversal of 8779320 is 239778.

8779320 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 an interprime number because it is at equal distance from previous prime (8779319) and next prime (8779321).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8779321) 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, 11511 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (249750).

Almost surely, 2^8779320 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 8779320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15984000).

8779320 is an abundant number, since it is smaller than the sum of its proper divisors (23188680).

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

8779320 is a wasteful number, since it uses less digits than its factorization.

8779320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 8779320 is about 2962.9917313418. The cubic root of 8779320 is about 206.2941723572.

The spelling of 8779320 in words is "eight million, seven hundred seventy-nine thousand, three hundred twenty".