8272710385 has 4 divisors (see below), whose sum is σ = 9927252468. Its totient is φ = 6618168304.

The previous prime is 8272710367. The next prime is 8272710419. The reversal of 8272710385 is 5830172728.

8272710385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2774339584 + 5498370801 = 52672^2 + 74151^2 .

It is a cyclic number.

It is not a de Polignac number, because 8272710385 - 2¹⁷ = 8272579313 is a prime.

It is a super-2 number, since 2×8272710385² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827271034 + ... + 827271043.

It is an arithmetic number, because the mean of its divisors is an integer number (2481813117).

Almost surely, 2^8272710385 is an apocalyptic number.

It is an amenable number.

8272710385 is a deficient number, since it is larger than the sum of its proper divisors (1654542083).

8272710385 is a wasteful number, since it uses less digits than its factorization.

8272710385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654542082.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 8272710385 is about 90954.4412604464. The cubic root of 8272710385 is about 2022.4724149676.

The spelling of 8272710385 in words is "eight billion, two hundred seventy-two million, seven hundred ten thousand, three hundred eighty-five".