9716887220 has 12 divisors (see below), whose sum is σ = 20405463204. Its totient is φ = 3886754880.

The previous prime is 9716887181. The next prime is 9716887237. The reversal of 9716887220 is 227886179.

It can be written as a sum of positive squares in 2 ways, for example, as 1494750244 + 8222136976 = 38662^2 + 90676^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 242922161 + ... + 242922200.

It is an arithmetic number, because the mean of its divisors is an integer number (1700455267).

Almost surely, 2^9716887220 is an apocalyptic number.

It is an amenable number.

9716887220 is an abundant number, since it is smaller than the sum of its proper divisors (10688575984).

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

9716887220 is a wasteful number, since it uses less digits than its factorization.

9716887220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485844370 (or 485844368 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 9716887220 is about 98574.2726070043. The cubic root of 9716887220 is about 2133.9081430140.

The spelling of 9716887220 in words is "nine billion, seven hundred sixteen million, eight hundred eighty-seven thousand, two hundred twenty".