9687397520 has 40 divisors (see below), whose sum is σ = 22622462784. Its totient is φ = 3857881472.

The previous prime is 9687397519. The next prime is 9687397529. The reversal of 9687397520 is 257937869.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (9687397529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248564 + ... + 284883.

Almost surely, 2^9687397520 is an apocalyptic number.

It is an amenable number.

9687397520 is an abundant number, since it is smaller than the sum of its proper divisors (12935065264).

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

9687397520 is a wasteful number, since it uses less digits than its factorization.

9687397520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533687 (or 533681 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 56.

The square root of 9687397520 is about 98424.5778248502. The cubic root of 9687397520 is about 2131.7472288141.

The spelling of 9687397520 in words is "nine billion, six hundred eighty-seven million, three hundred ninety-seven thousand, five hundred twenty".