961588884 has 48 divisors (see below), whose sum is σ = 2397947328. Its totient is φ = 298848768.

The previous prime is 961588883. The next prime is 961588921. The reversal of 961588884 is 488885169.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961588883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199 + ... + 43854.

It is an arithmetic number, because the mean of its divisors is an integer number (49957236).

Almost surely, 2^961588884 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 961588884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198973664).

961588884 is an abundant number, since it is smaller than the sum of its proper divisors (1436358444).

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

961588884 is a wasteful number, since it uses less digits than its factorization.

961588884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44184 (or 44182 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 57.

The square root of 961588884 is about 31009.4966744061. The cubic root of 961588884 is about 987.0287693235.

The spelling of 961588884 in words is "nine hundred sixty-one million, five hundred eighty-eight thousand, eight hundred eighty-four".