9665670 has 32 divisors (see below), whose sum is σ = 26512128. Its totient is φ = 2209248.

The previous prime is 9665657. The next prime is 9665701. The reversal of 9665670 is 765669.

It is a happy number.

9665670 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22804 + ... + 23223.

It is an arithmetic number, because the mean of its divisors is an integer number (828504).

Almost surely, 2^9665670 is an apocalyptic number.

9665670 is an abundant number, since it is smaller than the sum of its proper divisors (16846458).

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

9665670 is a wasteful number, since it uses less digits than its factorization.

9665670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46044.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 9665670 is about 3108.9660660741. The cubic root of 9665670 is about 213.0152295752.

The spelling of 9665670 in words is "nine million, six hundred sixty-five thousand, six hundred seventy".