965684849 has 4 divisors (see below), whose sum is σ = 989238180. Its totient is φ = 942131520.

The previous prime is 965684809. The next prime is 965684851. The reversal of 965684849 is 948486569.

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 368371249 + 597313600 = 19193^2 + 24440^2 .

It is a cyclic number.

It is not a de Polignac number, because 965684849 - 2¹⁶ = 965619313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (965684809) 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, 11776604 + ... + 11776685.

It is an arithmetic number, because the mean of its divisors is an integer number (247309545).

Almost surely, 2^965684849 is an apocalyptic number.

It is an amenable number.

965684849 is a deficient number, since it is larger than the sum of its proper divisors (23553331).

965684849 is a wasteful number, since it uses less digits than its factorization.

965684849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23553330.

The product of its digits is 14929920, while the sum is 59.

The square root of 965684849 is about 31075.4702136589. The cubic root of 965684849 is about 988.4282269106.

The spelling of 965684849 in words is "nine hundred sixty-five million, six hundred eighty-four thousand, eight hundred forty-nine".