8897570920 has 128 divisors (see below), whose sum is σ = 23644800000. Its totient is φ = 3011613696.

The previous prime is 8897570917. The next prime is 8897570951. The reversal of 8897570920 is 290757988.

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, 1079776 + ... + 1087984.

It is an arithmetic number, because the mean of its divisors is an integer number (184725000).

Almost surely, 2^8897570920 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 8897570920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11822400000).

8897570920 is an abundant number, since it is smaller than the sum of its proper divisors (14747229080).

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

8897570920 is a wasteful number, since it uses less digits than its factorization.

8897570920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8320 (or 8302 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 55.

The square root of 8897570920 is about 94326.9363437613. The cubic root of 8897570920 is about 2072.1625450764.

It can be divided in two parts, 88975 and 70920, that added together give a triangular number (159895 = T₅₆₅).

The spelling of 8897570920 in words is "eight billion, eight hundred ninety-seven million, five hundred seventy thousand, nine hundred twenty".