9790890 has 64 divisors (see below), whose sum is σ = 25142400. Its totient is φ = 2433024.

The previous prime is 9790843. The next prime is 9790901. The reversal of 9790890 is 980979.

It is a happy number.

9790890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50634 + ... + 50826.

It is an arithmetic number, because the mean of its divisors is an integer number (392850).

Almost surely, 2^9790890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9790890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12571200).

9790890 is an abundant number, since it is smaller than the sum of its proper divisors (15351510).

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

9790890 is a wasteful number, since it uses less digits than its factorization.

9790890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

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

The square root of 9790890 is about 3129.0397888170. The cubic root of 9790890 is about 213.9311654468.

The spelling of 9790890 in words is "nine million, seven hundred ninety thousand, eight hundred ninety".