9646720 has 32 divisors (see below), whose sum is σ = 23063220. Its totient is φ = 3858432.

The previous prime is 9646717. The next prime is 9646733. The reversal of 9646720 is 276469.

It can be written as a sum of positive squares in 2 ways, for example, as 9585216 + 61504 = 3096^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×9646720³ (a number of 22 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 9⁷ + 6⁴ + 4⁹ + 6⁸ + 7⁷ + 2²¹ + 0 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6897 + ... + 8176.

Almost surely, 2^9646720 is an apocalyptic number.

It is an amenable number.

9646720 is an abundant number, since it is smaller than the sum of its proper divisors (13416500).

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

9646720 is a wasteful number, since it uses less digits than its factorization.

9646720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15092 (or 15080 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 9646720 is about 3105.9169338538. The cubic root of 9646720 is about 212.8759297134.

The spelling of 9646720 in words is "nine million, six hundred forty-six thousand, seven hundred twenty".