8797985520 has 80 divisors (see below), whose sum is σ = 28878107040. Its totient is φ = 2208120832.

The previous prime is 8797985491. The next prime is 8797985543. The reversal of 8797985520 is 255897978.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1074105 + ... + 1082264.

It is an arithmetic number, because the mean of its divisors is an integer number (360976338).

Almost surely, 2^8797985520 is an apocalyptic number.

8797985520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8797985520 is an abundant number, since it is smaller than the sum of its proper divisors (20080121520).

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

8797985520 is a wasteful number, since it uses less digits than its factorization.

8797985520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156402 (or 2156396 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 60.

The square root of 8797985520 is about 93797.5773674352. The cubic root of 8797985520 is about 2064.4026804320.

The spelling of 8797985520 in words is "eight billion, seven hundred ninety-seven million, nine hundred eighty-five thousand, five hundred twenty".