8721086274 has 12 divisors (see below), whose sum is σ = 18895686966. Its totient is φ = 2907028752.

The previous prime is 8721086273. The next prime is 8721086287. The reversal of 8721086274 is 4726801278.

8721086274 is a `hidden beast` number, since 8 + 7 + 2 + 10 + 8 + 627 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8008997049 + 712089225 = 89493^2 + 26685^2 .

It is not an unprimeable number, because it can be changed into a prime (8721086273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242252379 + ... + 242252414.

Almost surely, 2^8721086274 is an apocalyptic number.

8721086274 is an abundant number, since it is smaller than the sum of its proper divisors (10174600692).

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

8721086274 is a wasteful number, since it uses less digits than its factorization.

8721086274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484504801 (or 484504798 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 8721086274 is about 93386.7564165284. The cubic root of 8721086274 is about 2058.3703983025.

The spelling of 8721086274 in words is "eight billion, seven hundred twenty-one million, eighty-six thousand, two hundred seventy-four".