9965570 has 48 divisors (see below), whose sum is σ = 19947384. Its totient is φ = 3571200.

The previous prime is 9965533. The next prime is 9965573. The reversal of 9965570 is 755699.

It can be written as a sum of positive squares in 4 ways, for example, as 6620329 + 3345241 = 2573^2 + 1829^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9965573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163340 + ... + 163400.

Almost surely, 2^9965570 is an apocalyptic number.

9965570 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

9965570 is a wasteful number, since it uses less digits than its factorization.

9965570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 9965570 is about 3156.8291052890. The cubic root of 9965570 is about 215.1959274023.

The spelling of 9965570 in words is "nine million, nine hundred sixty-five thousand, five hundred seventy".