9936961 has 4 divisors (see below), whose sum is σ = 10099924. Its totient is φ = 9774000.

The previous prime is 9936923. The next prime is 9936973. The reversal of 9936961 is 1696399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1696399 = 241 ⋅7039.

It can be written as a sum of positive squares in 2 ways, for example, as 1199025 + 8737936 = 1095^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 9936961 - 2²¹ = 7839809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9936911) 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, 81390 + ... + 81511.

It is an arithmetic number, because the mean of its divisors is an integer number (2524981).

Almost surely, 2^9936961 is an apocalyptic number.

It is an amenable number.

9936961 is a deficient number, since it is larger than the sum of its proper divisors (162963).

9936961 is a wasteful number, since it uses less digits than its factorization.

9936961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162962.

The product of its digits is 78732, while the sum is 43.

The square root of 9936961 is about 3152.2945611094. The cubic root of 9936961 is about 214.9898030138.

The spelling of 9936961 in words is "nine million, nine hundred thirty-six thousand, nine hundred sixty-one".