9879678 has 16 divisors (see below), whose sum is σ = 21954960. Its totient is φ = 3293208.

The previous prime is 9879659. The next prime is 9879689. The reversal of 9879678 is 8769789.

9879678 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 182957 = 9879678 / (9 + 8 + 7 + 9 + 6 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91425 + ... + 91532.

It is an arithmetic number, because the mean of its divisors is an integer number (1372185).

Almost surely, 2^9879678 is an apocalyptic number.

9879678 is an abundant number, since it is smaller than the sum of its proper divisors (12075282).

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

9879678 is a wasteful number, since it uses less digits than its factorization.

9879678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182968 (or 182962 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 9879678 is about 3143.1955077596. The cubic root of 9879678 is about 214.5758937273.

The spelling of 9879678 in words is "nine million, eight hundred seventy-nine thousand, six hundred seventy-eight".