965787813 has 8 divisors (see below), whose sum is σ = 1430796800. Its totient is φ = 643858524.

The previous prime is 965787791. The next prime is 965787827. The reversal of 965787813 is 318787569.

It is not a de Polignac number, because 965787813 - 2⁶ = 965787749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 965787813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965787853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17884933 + ... + 17884986.

It is an arithmetic number, because the mean of its divisors is an integer number (178849600).

Almost surely, 2^965787813 is an apocalyptic number.

It is an amenable number.

965787813 is a deficient number, since it is larger than the sum of its proper divisors (465008987).

965787813 is a wasteful number, since it uses less digits than its factorization.

965787813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35769928 (or 35769922 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 965787813 is about 31077.1268459618. The cubic root of 965787813 is about 988.4633553162.

The spelling of 965787813 in words is "nine hundred sixty-five million, seven hundred eighty-seven thousand, eight hundred thirteen".