9807964 has 6 divisors (see below), whose sum is σ = 17163944. Its totient is φ = 4903980.

The previous prime is 9807953. The next prime is 9807991. The reversal of 9807964 is 4697089.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9807964.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1225992 + ... + 1225999.

Almost surely, 2^9807964 is an apocalyptic number.

It is an amenable number.

9807964 is a deficient number, since it is larger than the sum of its proper divisors (7355980).

9807964 is a wasteful number, since it uses less digits than its factorization.

9807964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451995 (or 2451993 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 9807964 is about 3131.7669134212. The cubic root of 9807964 is about 214.0554489908.

The spelling of 9807964 in words is "nine million, eight hundred seven thousand, nine hundred sixty-four".