9978963 has 8 divisors (see below), whose sum is σ = 13338576. Its totient is φ = 6636000.

The previous prime is 9978961. The next prime is 9978989. The reversal of 9978963 is 3698799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9978963 - 2¹ = 9978961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9978961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2688 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (1667322).

Almost surely, 2^9978963 is an apocalyptic number.

9978963 is a deficient number, since it is larger than the sum of its proper divisors (3359613).

9978963 is a wasteful number, since it uses less digits than its factorization.

9978963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325.

The product of its digits is 734832, while the sum is 51.

The square root of 9978963 is about 3158.9496672154. The cubic root of 9978963 is about 215.2922867977.

The spelling of 9978963 in words is "nine million, nine hundred seventy-eight thousand, nine hundred sixty-three".