9947313380 has 12 divisors (see below), whose sum is σ = 20889358140. Its totient is φ = 3978925344.

The previous prime is 9947313379. The next prime is 9947313443. The reversal of 9947313380 is 833137499.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5296346176 + 4650967204 = 72776^2 + 68198^2 .

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, 248682815 + ... + 248682854.

It is an arithmetic number, because the mean of its divisors is an integer number (1740779845).

Almost surely, 2^9947313380 is an apocalyptic number.

It is an amenable number.

9947313380 is an abundant number, since it is smaller than the sum of its proper divisors (10942044760).

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

9947313380 is a wasteful number, since it uses less digits than its factorization.

9947313380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497365678 (or 497365676 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 9947313380 is about 99736.2189979147. The cubic root of 9947313380 is about 2150.6443628390.

The spelling of 9947313380 in words is "nine billion, nine hundred forty-seven million, three hundred thirteen thousand, three hundred eighty".