9890880 has 56 divisors (see below), whose sum is σ = 31406592. Its totient is φ = 2637312.

The previous prime is 9890873. The next prime is 9890899. The reversal of 9890880 is 880989.

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, 4192 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (560832).

Almost surely, 2^9890880 is an apocalyptic number.

It is an amenable number.

9890880 is an abundant number, since it is smaller than the sum of its proper divisors (21515712).

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

9890880 is a wasteful number, since it uses less digits than its factorization.

9890880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10323 (or 10313 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 9890880 is about 3144.9769474513. The cubic root of 9890880 is about 214.6569615269.

The spelling of 9890880 in words is "nine million, eight hundred ninety thousand, eight hundred eighty".