8780085 has 24 divisors (see below), whose sum is σ = 15481440. Its totient is φ = 4601952.

The previous prime is 8780081. The next prime is 8780087. The reversal of 8780085 is 5800878.

It is not a de Polignac number, because 8780085 - 2² = 8780081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8780081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1002 + ... + 4308.

It is an arithmetic number, because the mean of its divisors is an integer number (645060).

Almost surely, 2^8780085 is an apocalyptic number.

It is an amenable number.

8780085 is a deficient number, since it is larger than the sum of its proper divisors (6701355).

8780085 is a wasteful number, since it uses less digits than its factorization.

8780085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377 (or 3374 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 8780085 is about 2963.1208210264. The cubic root of 8780085 is about 206.3001641066.

The spelling of 8780085 in words is "eight million, seven hundred eighty thousand, eighty-five".