9805957 has 16 divisors (see below), whose sum is σ = 12493440. Its totient is φ = 7492608.

The previous prime is 9805927. The next prime is 9805963. The reversal of 9805957 is 7595089.

It is a cyclic number.

It is not a de Polignac number, because 9805957 - 2¹⁹ = 9281669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9805907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93 + ... + 4429.

It is an arithmetic number, because the mean of its divisors is an integer number (780840).

Almost surely, 2^9805957 is an apocalyptic number.

It is an amenable number.

9805957 is a deficient number, since it is larger than the sum of its proper divisors (2687483).

9805957 is a wasteful number, since it uses less digits than its factorization.

9805957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 9805957 is about 3131.4464708821. The cubic root of 9805957 is about 214.0408472993.

The spelling of 9805957 in words is "nine million, eight hundred five thousand, nine hundred fifty-seven".