9996539 has 12 divisors (see below), whose sum is σ = 12005568. Its totient is φ = 8290800.

The previous prime is 9996523. The next prime is 9996541. The reversal of 9996539 is 9356999.

9996539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9996539 - 2⁴ = 9996523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9996509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1772 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (1000464).

Almost surely, 2^9996539 is an apocalyptic number.

9996539 is a deficient number, since it is larger than the sum of its proper divisors (2009029).

9996539 is a wasteful number, since it uses less digits than its factorization.

9996539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626 (or 6619 counting only the distinct ones).

The product of its digits is 590490, while the sum is 50.

The square root of 9996539 is about 3161.7303806618. The cubic root of 9996539 is about 215.4186111403.

Subtracting from 9996539 its product of digits (590490), we obtain a palindrome (9406049).

The spelling of 9996539 in words is "nine million, nine hundred ninety-six thousand, five hundred thirty-nine".