9945860 has 24 divisors (see below), whose sum is σ = 20948760. Its totient is φ = 3966464.

The previous prime is 9945853. The next prime is 9945877. The reversal of 9945860 is 685499.

It can be written as a sum of positive squares in 4 ways, for example, as 4674244 + 5271616 = 2162^2 + 2296^2 .

It is a super-2 number, since 2×9945860² = 197840262279200, which contains 22 as substring.

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, 9692 + ... + 10668.

It is an arithmetic number, because the mean of its divisors is an integer number (872865).

Almost surely, 2^9945860 is an apocalyptic number.

It is an amenable number.

9945860 is an abundant number, since it is smaller than the sum of its proper divisors (11002900).

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

9945860 is a wasteful number, since it uses less digits than its factorization.

9945860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 9945860 is about 3153.7057567249. The cubic root of 9945860 is about 215.0539615771.

The spelling of 9945860 in words is "nine million, nine hundred forty-five thousand, eight hundred sixty".