8728485971 has 2 divisors, whose sum is σ = 8728485972. Its totient is φ = 8728485970.

The previous prime is 8728485937. The next prime is 8728485979. The reversal of 8728485971 is 1795848278.

8728485971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8728485971 - 2³⁰ = 7654744147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8728485971.

It is not a weakly prime, because it can be changed into another prime (8728485979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364242985 + 4364242986.

It is an arithmetic number, because the mean of its divisors is an integer number (4364242986).

Almost surely, 2^8728485971 is an apocalyptic number.

8728485971 is a deficient number, since it is larger than the sum of its proper divisors (1).

8728485971 is an equidigital number, since it uses as much as digits as its factorization.

8728485971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9031680, while the sum is 59.

The square root of 8728485971 is about 93426.3665728257. The cubic root of 8728485971 is about 2058.9523981043.

The spelling of 8728485971 in words is "eight billion, seven hundred twenty-eight million, four hundred eighty-five thousand, nine hundred seventy-one".