966646812 has 72 divisors (see below), whose sum is σ = 2393387136. Its totient is φ = 303602976.

The previous prime is 966646777. The next prime is 966646819. The reversal of 966646812 is 218646669.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966646819) 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 23 ways as a sum of consecutive naturals, for example, 982873 + ... + 983855.

It is an arithmetic number, because the mean of its divisors is an integer number (33241488).

Almost surely, 2^966646812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 966646812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1196693568).

966646812 is an abundant number, since it is smaller than the sum of its proper divisors (1426740324).

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

966646812 is a wasteful number, since it uses less digits than its factorization.

966646812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1234 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 966646812 is about 31090.9442121014. The cubic root of 966646812 is about 988.7563242313.

The spelling of 966646812 in words is "nine hundred sixty-six million, six hundred forty-six thousand, eight hundred twelve".