961318784 has 32 divisors (see below), whose sum is σ = 1925872200. Its totient is φ = 477962752.

The previous prime is 961318783. The next prime is 961318789. The reversal of 961318784 is 487813169.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961318781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934 + ... + 43890.

Almost surely, 2^961318784 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 961318784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962936100).

961318784 is an abundant number, since it is smaller than the sum of its proper divisors (964553416).

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

961318784 is a wasteful number, since it uses less digits than its factorization.

961318784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42150 (or 42138 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 961318784 is about 31005.1412510893. The cubic root of 961318784 is about 986.9363454057.

The spelling of 961318784 in words is "nine hundred sixty-one million, three hundred eighteen thousand, seven hundred eighty-four".