9978675 has 48 divisors (see below), whose sum is σ = 19165440. Its totient is φ = 4487040.

The previous prime is 9978659. The next prime is 9978719. The reversal of 9978675 is 5768799.

It is not a de Polignac number, because 9978675 - 2⁴ = 9978659 is a prime.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43461 + ... + 43689.

It is an arithmetic number, because the mean of its divisors is an integer number (399280).

Almost surely, 2^9978675 is an apocalyptic number.

9978675 is a deficient number, since it is larger than the sum of its proper divisors (9186765).

9978675 is a wasteful number, since it uses less digits than its factorization.

9978675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 327 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The square root of 9978675 is about 3158.9040821146. The cubic root of 9978675 is about 215.2902156147.

The spelling of 9978675 in words is "nine million, nine hundred seventy-eight thousand, six hundred seventy-five".