993656480 has 24 divisors (see below), whose sum is σ = 2347513812. Its totient is φ = 397462528.

The previous prime is 993656473. The next prime is 993656491. The reversal of 993656480 is 84656399.

It can be written as a sum of positive squares in 2 ways, for example, as 898320784 + 95335696 = 29972^2 + 9764^2 .

It is a super-3 number, since 3×993656480³ (a number of 28 digits) contains 333 as substring.

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, 3105017 + ... + 3105336.

Almost surely, 2^993656480 is an apocalyptic number.

It is an amenable number.

993656480 is an abundant number, since it is smaller than the sum of its proper divisors (1353857332).

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

993656480 is a wasteful number, since it uses less digits than its factorization.

993656480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210368 (or 6210360 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 993656480 is about 31522.3171737104. The cubic root of 993656480 is about 997.8810063709.

The spelling of 993656480 in words is "nine hundred ninety-three million, six hundred fifty-six thousand, four hundred eighty".