9828978 has 16 divisors (see below), whose sum is σ = 19728576. Its totient is φ = 3264560.

The previous prime is 9828977. The next prime is 9828979. The reversal of 9828978 is 8798289.

It is an interprime number because it is at equal distance from previous prime (9828977) and next prime (9828979).

It is a self number, because there is not a number n which added to its sum of digits gives 9828978.

It is not an unprimeable number, because it can be changed into a prime (9828977) 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, 1038 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (1233036).

Almost surely, 2^9828978 is an apocalyptic number.

9828978 is an abundant number, since it is smaller than the sum of its proper divisors (9899598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9828978 is a wasteful number, since it uses less digits than its factorization.

9828978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889.

The product of its digits is 580608, while the sum is 51.

The square root of 9828978 is about 3135.1200933936. The cubic root of 9828978 is about 214.2082143870.

The spelling of 9828978 in words is "nine million, eight hundred twenty-eight thousand, nine hundred seventy-eight".