961605276 has 48 divisors (see below), whose sum is σ = 2375587200. Its totient is φ = 301897152.

The previous prime is 961605251. The next prime is 961605283. The reversal of 961605276 is 672506169.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27255 + ... + 51633.

It is an arithmetic number, because the mean of its divisors is an integer number (49491400).

Almost surely, 2^961605276 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 961605276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187793600).

961605276 is an abundant number, since it is smaller than the sum of its proper divisors (1413981924).

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

961605276 is a wasteful number, since it uses less digits than its factorization.

961605276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24578 (or 24576 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 961605276 is about 31009.7609794078. The cubic root of 961605276 is about 987.0343778477.

The spelling of 961605276 in words is "nine hundred sixty-one million, six hundred five thousand, two hundred seventy-six".