9996658 has 32 divisors (see below), whose sum is σ = 17729280. Its totient is φ = 4139520.

The previous prime is 9996647. The next prime is 9996659. The reversal of 9996658 is 8566999.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9996659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88410 + ... + 88522.

It is an arithmetic number, because the mean of its divisors is an integer number (554040).

Almost surely, 2^9996658 is an apocalyptic number.

9996658 is a deficient number, since it is larger than the sum of its proper divisors (7732622).

9996658 is a wasteful number, since it uses less digits than its factorization.

9996658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

The product of its digits is 1049760, while the sum is 52.

The square root of 9996658 is about 3161.7491994148. The cubic root of 9996658 is about 215.4194659266.

The spelling of 9996658 in words is "nine million, nine hundred ninety-six thousand, six hundred fifty-eight".