9723136 has 36 divisors (see below), whose sum is σ = 20440000. Its totient is φ = 4603392.

The previous prime is 9723121. The next prime is 9723137. The reversal of 9723136 is 6313279.

It is a junction number, because it is equal to n+sod(n) for n = 9723098 and 9723107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9723137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3865 + ... + 5863.

Almost surely, 2^9723136 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 9723136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10220000).

9723136 is an abundant number, since it is smaller than the sum of its proper divisors (10716864).

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

9723136 is a wasteful number, since it uses less digits than its factorization.

9723136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 2020 counting only the distinct ones).

The product of its digits is 6804, while the sum is 31.

The square root of 9723136 is about 3118.1943492990. The cubic root of 9723136 is about 213.4365472777.

The spelling of 9723136 in words is "nine million, seven hundred twenty-three thousand, one hundred thirty-six".