9964687 has 4 divisors (see below), whose sum is σ = 10133640. Its totient is φ = 9795736.

The previous prime is 9964667. The next prime is 9964769. The reversal of 9964687 is 7864699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9964687 - 2¹¹ = 9962639 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9964687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9964667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84388 + ... + 84505.

It is an arithmetic number, because the mean of its divisors is an integer number (2533410).

Almost surely, 2^9964687 is an apocalyptic number.

9964687 is a deficient number, since it is larger than the sum of its proper divisors (168953).

9964687 is a wasteful number, since it uses less digits than its factorization.

9964687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168952.

The product of its digits is 653184, while the sum is 49.

The square root of 9964687 is about 3156.6892466633. The cubic root of 9964687 is about 215.1895713980.

The spelling of 9964687 in words is "nine million, nine hundred sixty-four thousand, six hundred eighty-seven".