9646987 has 4 divisors (see below), whose sum is σ = 11025136. Its totient is φ = 8268840.

The previous prime is 9646981. The next prime is 9646991. The reversal of 9646987 is 7896469.

9646987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9646987 - 2³ = 9646979 is a prime.

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 9646987.

It is not an unprimeable number, because it can be changed into a prime (9646981) 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, 689064 + ... + 689077.

It is an arithmetic number, because the mean of its divisors is an integer number (2756284).

Almost surely, 2^9646987 is an apocalyptic number.

9646987 is a deficient number, since it is larger than the sum of its proper divisors (1378149).

9646987 is a wasteful number, since it uses less digits than its factorization.

9646987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378148.

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

The square root of 9646987 is about 3105.9599160324. The cubic root of 9646987 is about 212.8778936745.

The spelling of 9646987 in words is "nine million, six hundred forty-six thousand, nine hundred eighty-seven".