9997536 has 48 divisors (see below), whose sum is σ = 26417664. Its totient is φ = 3310464.

The previous prime is 9997523. The next prime is 9997573. The reversal of 9997536 is 6357999.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21175 + ... + 21641.

It is an arithmetic number, because the mean of its divisors is an integer number (550368).

Almost surely, 2^9997536 is an apocalyptic number.

9997536 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9997536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13208832).

9997536 is an abundant number, since it is smaller than the sum of its proper divisors (16420128).

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

9997536 is a wasteful number, since it uses less digits than its factorization.

9997536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 695 counting only the distinct ones).

The product of its digits is 459270, while the sum is 48.

The square root of 9997536 is about 3161.8880435588. Note that the first 3 decimals coincide. The cubic root of 9997536 is about 215.4257724594.

The spelling of 9997536 in words is "nine million, nine hundred ninety-seven thousand, five hundred thirty-six".