8897520 has 80 divisors (see below), whose sum is σ = 27891072. Its totient is φ = 2346240.

The previous prime is 8897513. The next prime is 8897543. The reversal of 8897520 is 257988.

8897520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 31299 + ... + 31581.

Almost surely, 2^8897520 is an apocalyptic number.

8897520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8897520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13945536).

8897520 is an abundant number, since it is smaller than the sum of its proper divisors (18993552).

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

8897520 is a wasteful number, since it uses less digits than its factorization.

8897520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 8897520 is about 2982.8711001315. The cubic root of 8897520 is about 207.2158592135.

The spelling of 8897520 in words is "eight million, eight hundred ninety-seven thousand, five hundred twenty".