9663907 has 6 divisors (see below), whose sum is σ = 10622444. Its totient is φ = 8785260.

The previous prime is 9663893. The next prime is 9663911. The reversal of 9663907 is 7093669.

It is not a de Polignac number, because 9663907 - 2⁷ = 9663779 is a prime.

It is a Duffinian number.

9663907 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9663907.

It is not an unprimeable number, because it can be changed into a prime (9663917) 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 5 ways as a sum of consecutive naturals, for example, 39813 + ... + 40054.

Almost surely, 2^9663907 is an apocalyptic number.

9663907 is a deficient number, since it is larger than the sum of its proper divisors (958537).

9663907 is a wasteful number, since it uses less digits than its factorization.

9663907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79889 (or 79878 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 9663907 is about 3108.6825183669. The cubic root of 9663907 is about 213.0022775955.

The spelling of 9663907 in words is "nine million, six hundred sixty-three thousand, nine hundred seven".