8633967940 has 24 divisors (see below), whose sum is σ = 19526051160. Its totient is φ = 3187926528.

The previous prime is 8633967929. The next prime is 8633967941. The reversal of 8633967940 is 497693368.

It can be written as a sum of positive squares in 4 ways, for example, as 131652676 + 8502315264 = 11474^2 + 92208^2 .

It is not an unprimeable number, because it can be changed into a prime (8633967941) 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, 16603525 + ... + 16604044.

It is an arithmetic number, because the mean of its divisors is an integer number (813585465).

Almost surely, 2^8633967940 is an apocalyptic number.

It is an amenable number.

8633967940 is an abundant number, since it is smaller than the sum of its proper divisors (10892083220).

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

8633967940 is a wasteful number, since it uses less digits than its factorization.

8633967940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33207591 (or 33207589 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The square root of 8633967940 is about 92919.1473271252. The cubic root of 8633967940 is about 2051.4934934724.

The spelling of 8633967940 in words is "eight billion, six hundred thirty-three million, nine hundred sixty-seven thousand, nine hundred forty".