965881820 has 12 divisors (see below), whose sum is σ = 2028351864. Its totient is φ = 386352720.

The previous prime is 965881811. The next prime is 965881901. The reversal of 965881820 is 28188569.

It is a congruent number.

It is an unprimeable number.

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, 24147026 + ... + 24147065.

It is an arithmetic number, because the mean of its divisors is an integer number (169029322).

Almost surely, 2^965881820 is an apocalyptic number.

It is an amenable number.

965881820 is an abundant number, since it is smaller than the sum of its proper divisors (1062470044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

965881820 is a wasteful number, since it uses less digits than its factorization.

965881820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48294100 (or 48294098 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 965881820 is about 31078.6392881027. The cubic root of 965881820 is about 988.4954256663.

The spelling of 965881820 in words is "nine hundred sixty-five million, eight hundred eighty-one thousand, eight hundred twenty".