9956709 has 32 divisors (see below), whose sum is σ = 17024000. Its totient is φ = 5633712.

The previous prime is 9956699. The next prime is 9956717. The reversal of 9956709 is 9076599.

It is not a de Polignac number, because 9956709 - 2⁹ = 9956197 is a prime.

It is a super-2 number, since 2×9956709² = 198272108221362, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26082 + ... + 26460.

It is an arithmetic number, because the mean of its divisors is an integer number (532000).

Almost surely, 2^9956709 is an apocalyptic number.

It is an amenable number.

9956709 is a deficient number, since it is larger than the sum of its proper divisors (7067291).

9956709 is a wasteful number, since it uses less digits than its factorization.

9956709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 9956709 is about 3155.4253279075. The cubic root of 9956709 is about 215.1321271862.

The spelling of 9956709 in words is "nine million, nine hundred fifty-six thousand, seven hundred nine".