9810961 has 4 divisors (see below), whose sum is σ = 10149300. Its totient is φ = 9472624.

The previous prime is 9810953. The next prime is 9810971. The reversal of 9810961 is 1690189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7617600 + 2193361 = 2760^2 + 1481^2 .

It is a cyclic number.

It is not a de Polignac number, because 9810961 - 2³ = 9810953 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9810901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169126 + ... + 169183.

It is an arithmetic number, because the mean of its divisors is an integer number (2537325).

Almost surely, 2^9810961 is an apocalyptic number.

It is an amenable number.

9810961 is a deficient number, since it is larger than the sum of its proper divisors (338339).

9810961 is a wasteful number, since it uses less digits than its factorization.

9810961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338338.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 9810961 is about 3132.2453607596. The cubic root of 9810961 is about 214.0772496026.

The spelling of 9810961 in words is "nine million, eight hundred ten thousand, nine hundred sixty-one".