9678642 has 16 divisors (see below), whose sum is σ = 19396800. Its totient is φ = 3219632.

The previous prime is 9678637. The next prime is 9678667. The reversal of 9678642 is 2468769.

It is a super-2 number, since 2×9678642² = 187352221928328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9678594 and 9678603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2248 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (1212300).

Almost surely, 2^9678642 is an apocalyptic number.

9678642 is an abundant number, since it is smaller than the sum of its proper divisors (9718158).

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

9678642 is a wasteful number, since it uses less digits than its factorization.

9678642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297.

The product of its digits is 145152, while the sum is 42.

The square root of 9678642 is about 3111.0515907005. The cubic root of 9678642 is about 213.1104807176.

The spelling of 9678642 in words is "nine million, six hundred seventy-eight thousand, six hundred forty-two".