9880520 has 32 divisors (see below), whose sum is σ = 23942520. Its totient is φ = 3648000.

The previous prime is 9880489. The next prime is 9880529. The reversal of 9880520 is 250889.

9880520 = T₇₉ + T₈₀ + ... + T₃₉₀.

It can be written as a sum of positive squares in 4 ways, for example, as 4301476 + 5579044 = 2074^2 + 2362^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9880529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8981 + ... + 10020.

Almost surely, 2^9880520 is an apocalyptic number.

It is an amenable number.

9880520 is an abundant number, since it is smaller than the sum of its proper divisors (14062000).

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

9880520 is a wasteful number, since it uses less digits than its factorization.

9880520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19025 (or 19021 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 9880520 is about 3143.3294450312. The cubic root of 9880520 is about 214.5819893298.

The spelling of 9880520 in words is "nine million, eight hundred eighty thousand, five hundred twenty".