9900580 has 24 divisors (see below), whose sum is σ = 21696192. Its totient is φ = 3787872.

The previous prime is 9900547. The next prime is 9900589. The reversal of 9900580 is 850099.

It is a super-4 number, since 4×9900580⁴ (a number of 29 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (9900589) 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, 10302 + ... + 11221.

It is an arithmetic number, because the mean of its divisors is an integer number (904008).

Almost surely, 2^9900580 is an apocalyptic number.

It is an amenable number.

9900580 is an abundant number, since it is smaller than the sum of its proper divisors (11795612).

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

9900580 is a wasteful number, since it uses less digits than its factorization.

9900580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21555 (or 21553 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 9900580 is about 3146.5187112109. The cubic root of 9900580 is about 214.7271100622.

The spelling of 9900580 in words is "nine million, nine hundred thousand, five hundred eighty".