9629978 has 8 divisors (see below), whose sum is σ = 14607540. Its totient is φ = 4760800.

The previous prime is 9629969. The next prime is 9629981. The reversal of 9629978 is 8799269.

It can be written as a sum of positive squares in 2 ways, for example, as 9628609 + 1369 = 3103^2 + 37^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 9⁴ + 6⁵ + 2⁷ + 9⁷ + 9⁷ + 7⁵ + 8⁵ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26873 + ... + 27228.

Almost surely, 2^9629978 is an apocalyptic number.

9629978 is a deficient number, since it is larger than the sum of its proper divisors (4977562).

9629978 is a wasteful number, since it uses less digits than its factorization.

9629978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54192.

The product of its digits is 489888, while the sum is 50.

The square root of 9629978 is about 3103.2205851341. The cubic root of 9629978 is about 212.7527088129.

The spelling of 9629978 in words is "nine million, six hundred twenty-nine thousand, nine hundred seventy-eight".