961081982 has 24 divisors (see below), whose sum is σ = 1734822360. Its totient is φ = 397687920.

The previous prime is 961081909. The next prime is 961081987. The reversal of 961081982 is 289180169.

It is a super-2 number, since 2×961081982² = 1847357152250096648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961081987) 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 11 ways as a sum of consecutive naturals, for example, 166244 + ... + 171927.

It is an arithmetic number, because the mean of its divisors is an integer number (72284265).

Almost surely, 2^961081982 is an apocalyptic number.

961081982 is a deficient number, since it is larger than the sum of its proper divisors (773740378).

961081982 is a wasteful number, since it uses less digits than its factorization.

961081982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338216 (or 338209 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 961081982 is about 31001.3222621229. The cubic root of 961081982 is about 986.8553012898.

The spelling of 961081982 in words is "nine hundred sixty-one million, eighty-one thousand, nine hundred eighty-two".