8721301870 has 16 divisors (see below), whose sum is σ = 15699475728. Its totient is φ = 3488269120.

The previous prime is 8721301867. The next prime is 8721301873. The reversal of 8721301870 is 781031278.

8721301870 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8721301867) and next prime (8721301873).

It is a super-2 number, since 2×8721301870² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8721301873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185130 + ... + 227410.

It is an arithmetic number, because the mean of its divisors is an integer number (981217233).

Almost surely, 2^8721301870 is an apocalyptic number.

8721301870 is a deficient number, since it is larger than the sum of its proper divisors (6978173858).

8721301870 is a wasteful number, since it uses less digits than its factorization.

8721301870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62915.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 8721301870 is about 93387.9107272456. The cubic root of 8721301870 is about 2058.3873599803.

The spelling of 8721301870 in words is "eight billion, seven hundred twenty-one million, three hundred one thousand, eight hundred seventy".