9960811 has 4 divisors (see below), whose sum is σ = 11383792. Its totient is φ = 8537832.

The previous prime is 9960787. The next prime is 9960869. The reversal of 9960811 is 1180699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1180699 = 13 ⋅90823.

It is a cyclic number.

It is not a de Polignac number, because 9960811 - 2⁵ = 9960779 is a prime.

9960811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9960211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711480 + ... + 711493.

It is an arithmetic number, because the mean of its divisors is an integer number (2845948).

Almost surely, 2^9960811 is an apocalyptic number.

9960811 is a deficient number, since it is larger than the sum of its proper divisors (1422981).

9960811 is a wasteful number, since it uses less digits than its factorization.

9960811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422980.

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

The square root of 9960811 is about 3156.0752525883. The cubic root of 9960811 is about 215.1616667601.

Adding to 9960811 its product of nonzero digits (3888), we get a palindrome (9964699).

The spelling of 9960811 in words is "nine million, nine hundred sixty thousand, eight hundred eleven".