9959520 has 48 divisors (see below), whose sum is σ = 31374000. Its totient is φ = 2655744.

The previous prime is 9959513. The next prime is 9959533. The reversal of 9959520 is 259599.

9959520 is digitally balanced in base 2 and base 4, because in such bases 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 (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9895 + ... + 10854.

It is an arithmetic number, because the mean of its divisors is an integer number (653625).

Almost surely, 2^9959520 is an apocalyptic number.

It is an amenable number.

9959520 is an abundant number, since it is smaller than the sum of its proper divisors (21414480).

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

9959520 is a wasteful number, since it uses less digits than its factorization.

9959520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20767 (or 20759 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 39.

The square root of 9959520 is about 3155.8707197856. The cubic root of 9959520 is about 215.1523708065.

The spelling of 9959520 in words is "nine million, nine hundred fifty-nine thousand, five hundred twenty".