961721082 has 48 divisors (see below), whose sum is σ = 2416969152. Its totient is φ = 270673920.

The previous prime is 961721071. The next prime is 961721087. The reversal of 961721082 is 280127169.

It is not an unprimeable number, because it can be changed into a prime (961721087) 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, 48519 + ... + 65402.

It is an arithmetic number, because the mean of its divisors is an integer number (50353524).

Almost surely, 2^961721082 is an apocalyptic number.

961721082 is an abundant number, since it is smaller than the sum of its proper divisors (1455248070).

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

961721082 is a wasteful number, since it uses less digits than its factorization.

961721082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114003 (or 114000 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 961721082 is about 31011.6281739608. The cubic root of 961721082 is about 987.0739990650.

The spelling of 961721082 in words is "nine hundred sixty-one million, seven hundred twenty-one thousand, eighty-two".