9636990 has 128 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 2096640.

The previous prime is 9636967. The next prime is 9636997. The reversal of 9636990 is 996369.

9636990 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9636997) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181804 + ... + 181856.

It is an arithmetic number, because the mean of its divisors is an integer number (218700).

Almost surely, 2^9636990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9636990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13996800).

9636990 is an abundant number, since it is smaller than the sum of its proper divisors (18356610).

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

9636990 is a wasteful number, since it uses less digits than its factorization.

9636990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 9636990 is about 3104.3501735468. The cubic root of 9636990 is about 212.8043344087.

The spelling of 9636990 in words is "nine million, six hundred thirty-six thousand, nine hundred ninety".