961643304 has 48 divisors (see below), whose sum is σ = 2605948800. Its totient is φ = 320363424.

The previous prime is 961643303. The next prime is 961643323. The reversal of 961643304 is 403346169.

961643304 is a `hidden beast` number, since 9 + 6 + 1 + 643 + 3 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (961643303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188937 + ... + 193959.

It is an arithmetic number, because the mean of its divisors is an integer number (54290600).

Almost surely, 2^961643304 is an apocalyptic number.

It is an amenable number.

961643304 is an abundant number, since it is smaller than the sum of its proper divisors (1644305496).

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

961643304 is a wasteful number, since it uses less digits than its factorization.

961643304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7694 (or 7687 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 961643304 is about 31010.3741351181. The cubic root of 961643304 is about 987.0473888858.

The spelling of 961643304 in words is "nine hundred sixty-one million, six hundred forty-three thousand, three hundred four".