9664407 has 16 divisors (see below), whose sum is σ = 15072000. Its totient is φ = 6103512.

The previous prime is 9664399. The next prime is 9664411. The reversal of 9664407 is 7044669.

9664407 is a `hidden beast` number, since 9 + 6 + 644 + 0 + 7 = 666.

It is not a de Polignac number, because 9664407 - 2³ = 9664399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664427) 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, 8907 + ... + 9932.

It is an arithmetic number, because the mean of its divisors is an integer number (942000).

Almost surely, 2^9664407 is an apocalyptic number.

9664407 is a deficient number, since it is larger than the sum of its proper divisors (5407593).

9664407 is a wasteful number, since it uses less digits than its factorization.

9664407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18867 (or 18861 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 9664407 is about 3108.7629372469. The cubic root of 9664407 is about 213.0059510339.

The spelling of 9664407 in words is "nine million, six hundred sixty-four thousand, four hundred seven".