9678730 has 8 divisors (see below), whose sum is σ = 17421732. Its totient is φ = 3871488.

The previous prime is 9678689. The next prime is 9678737. The reversal of 9678730 is 378769.

It can be written as a sum of positive squares in 2 ways, for example, as 9653449 + 25281 = 3107^2 + 159^2 .

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 (9678737) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 483927 + ... + 483946.

Almost surely, 2^9678730 is an apocalyptic number.

9678730 is a deficient number, since it is larger than the sum of its proper divisors (7743002).

9678730 is a wasteful number, since it uses less digits than its factorization.

9678730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967880.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 9678730 is about 3111.0657337961. The cubic root of 9678730 is about 213.1111265955. Note that the first 4 decimals are identical.

The spelling of 9678730 in words is "nine million, six hundred seventy-eight thousand, seven hundred thirty".