9965230277 has 4 divisors (see below), whose sum is σ = 10208284716. Its totient is φ = 9722175840.

The previous prime is 9965230243. The next prime is 9965230283. The reversal of 9965230277 is 7720325699.

It is a happy number.

9965230277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 99826²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7720325699 = 1223 ⋅6312613.

It can be written as a sum of positive squares in 2 ways, for example, as 480223396 + 9485006881 = 21914^2 + 97391^2 .

It is not a de Polignac number, because 9965230277 - 2⁸ = 9965230021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9965230237) 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, 121527158 + ... + 121527239.

It is an arithmetic number, because the mean of its divisors is an integer number (2552071179).

Almost surely, 2^9965230277 is an apocalyptic number.

It is an amenable number.

9965230277 is a deficient number, since it is larger than the sum of its proper divisors (243054439).

9965230277 is a wasteful number, since it uses less digits than its factorization.

9965230277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243054438.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 9965230277 is about 99826.0000050087. Note that the first 5 decimals coincide. The cubic root of 9965230277 is about 2151.9348205506.

The spelling of 9965230277 in words is "nine billion, nine hundred sixty-five million, two hundred thirty thousand, two hundred seventy-seven".