961579648 has 32 divisors (see below), whose sum is σ = 1917570420. Its totient is φ = 480307200.

The previous prime is 961579589. The next prime is 961579673. The reversal of 961579648 is 846975169.

It can be written as a sum of positive squares in 2 ways, for example, as 949132864 + 12446784 = 30808^2 + 3528^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147988 + ... + 154348.

Almost surely, 2^961579648 is an apocalyptic number.

It is an amenable number.

961579648 is a deficient number, since it is larger than the sum of its proper divisors (955990772).

961579648 is a wasteful number, since it uses less digits than its factorization.

961579648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556 (or 7544 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 961579648 is about 31009.3477519280. The cubic root of 961579648 is about 987.0256091972.

The spelling of 961579648 in words is "nine hundred sixty-one million, five hundred seventy-nine thousand, six hundred forty-eight".