9964978 has 8 divisors (see below), whose sum is σ = 15015168. Its totient is φ = 4959924.

The previous prime is 9964967. The next prime is 9964979. The reversal of 9964978 is 8794699.

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

It is not an unprimeable number, because it can be changed into a prime (9964979) 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, 10726 + ... + 11617.

It is an arithmetic number, because the mean of its divisors is an integer number (1876896).

Almost surely, 2^9964978 is an apocalyptic number.

9964978 is a deficient number, since it is larger than the sum of its proper divisors (5050190).

9964978 is a wasteful number, since it uses less digits than its factorization.

9964978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22568.

The product of its digits is 979776, while the sum is 52.

The square root of 9964978 is about 3156.7353389222. The cubic root of 9964978 is about 215.1916661136.

The spelling of 9964978 in words is "nine million, nine hundred sixty-four thousand, nine hundred seventy-eight".