9961011 has 6 divisors (see below), whose sum is σ = 14388140. Its totient is φ = 6640668.

The previous prime is 9961009. The next prime is 9961033. The reversal of 9961011 is 1101699.

It is not a de Polignac number, because 9961011 - 2¹ = 9961009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9961051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553381 + ... + 553398.

Almost surely, 2^9961011 is an apocalyptic number.

9961011 is a deficient number, since it is larger than the sum of its proper divisors (4427129).

9961011 is a wasteful number, since it uses less digits than its factorization.

9961011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106785 (or 1106782 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 9961011 is about 3156.1069373518. The cubic root of 9961011 is about 215.1631068051.

The spelling of 9961011 in words is "nine million, nine hundred sixty-one thousand, eleven".