9665442 has 24 divisors (see below), whose sum is σ = 21106800. Its totient is φ = 3196440.

The previous prime is 9665441. The next prime is 9665449. The reversal of 9665442 is 2445669.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9665397 and 9665406.

It is not an unprimeable number, because it can be changed into a prime (9665441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309 + ... + 4407.

It is an arithmetic number, because the mean of its divisors is an integer number (879450).

Almost surely, 2^9665442 is an apocalyptic number.

9665442 is an abundant number, since it is smaller than the sum of its proper divisors (11441358).

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

9665442 is a wasteful number, since it uses less digits than its factorization.

9665442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238 (or 4235 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 9665442 is about 3108.9293977188. The cubic root of 9665442 is about 213.0135546489.

The spelling of 9665442 in words is "nine million, six hundred sixty-five thousand, four hundred forty-two".