9890736 has 120 divisors (see below), whose sum is σ = 29236224. Its totient is φ = 2872320.

The previous prime is 9890693. The next prime is 9890737. The reversal of 9890736 is 6370989.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319041 + ... + 319071.

Almost surely, 2^9890736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9890736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14618112).

9890736 is an abundant number, since it is smaller than the sum of its proper divisors (19345488).

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

9890736 is a wasteful number, since it uses less digits than its factorization.

9890736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 9890736 is about 3144.9540537184. The cubic root of 9890736 is about 214.6559198011.

The spelling of 9890736 in words is "nine million, eight hundred ninety thousand, seven hundred thirty-six".