9789090 has 32 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 2539584.

The previous prime is 9789083. The next prime is 9789121. The reversal of 9789090 is 909879.

It is a happy number.

9789090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3300 + ... + 5519.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^9789090 is an apocalyptic number.

9789090 is an abundant number, since it is smaller than the sum of its proper divisors (14342430).

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

9789090 is a wasteful number, since it uses less digits than its factorization.

9789090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 9789090 is about 3128.7521474224. The cubic root of 9789090 is about 213.9180546299.

The spelling of 9789090 in words is "nine million, seven hundred eighty-nine thousand, ninety".