9829961 has 12 divisors (see below), whose sum is σ = 10670652. Its totient is φ = 9022464.

The previous prime is 9829951. The next prime is 9829969. The reversal of 9829961 is 1699289.

It can be written as a sum of positive squares in 6 ways, for example, as 219961 + 9610000 = 469^2 + 3100^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9829961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9829969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110405 + ... + 110493.

It is an arithmetic number, because the mean of its divisors is an integer number (889221).

Almost surely, 2^9829961 is an apocalyptic number.

It is an amenable number.

9829961 is a deficient number, since it is larger than the sum of its proper divisors (840691).

9829961 is an equidigital number, since it uses as much as digits as its factorization.

9829961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 179 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 9829961 is about 3135.2768617779. The cubic root of 9829961 is about 214.2153551652.

The spelling of 9829961 in words is "nine million, eight hundred twenty-nine thousand, nine hundred sixty-one".