9900522 has 16 divisors (see below), whose sum is σ = 22001280. Its totient is φ = 3300156.

The previous prime is 9900509. The next prime is 9900529. The reversal of 9900522 is 2250099.

9900522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (9900529) 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, 91618 + ... + 91725.

It is an arithmetic number, because the mean of its divisors is an integer number (1375080).

Almost surely, 2^9900522 is an apocalyptic number.

9900522 is an abundant number, since it is smaller than the sum of its proper divisors (12100758).

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

9900522 is a wasteful number, since it uses less digits than its factorization.

9900522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183354 (or 183348 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 9900522 is about 3146.5094946623. The cubic root of 9900522 is about 214.7266907535.

The spelling of 9900522 in words is "nine million, nine hundred thousand, five hundred twenty-two".