9906394608 has 120 divisors (see below), whose sum is σ = 31364825856. Its totient is φ = 3001924800.

The previous prime is 9906394583. The next prime is 9906394613. The reversal of 9906394608 is 8064936099.

It is a happy number.

It is a super-2 number, since 2×9906394608² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73048 + ... + 158583.

Almost surely, 2^9906394608 is an apocalyptic number.

It is an amenable number.

9906394608 is an abundant number, since it is smaller than the sum of its proper divisors (21458431248).

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

9906394608 is a wasteful number, since it uses less digits than its factorization.

9906394608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231665 (or 231647 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 9906394608 is about 99530.8726375892. The cubic root of 9906394608 is about 2147.6913822706.

The spelling of 9906394608 in words is "nine billion, nine hundred six million, three hundred ninety-four thousand, six hundred eight".