9642906 has 108 divisors (see below), whose sum is σ = 27107262. Its totient is φ = 2455488.

The previous prime is 9642889. The next prime is 9642907. The reversal of 9642906 is 6092469.

9642906 is a `hidden beast` number, since 9 + 642 + 9 + 0 + 6 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6890625 + 2752281 = 2625^2 + 1659^2 .

It is a super-2 number, since 2×9642906² = 185971272249672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9642907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 332500 + ... + 332528.

Almost surely, 2^9642906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9642906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13553631).

9642906 is an abundant number, since it is smaller than the sum of its proper divisors (17464356).

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

9642906 is a wasteful number, since it uses less digits than its factorization.

9642906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 9642906 is about 3105.3028837780. The cubic root of 9642906 is about 212.8478712707.

The spelling of 9642906 in words is "nine million, six hundred forty-two thousand, nine hundred six".