8215730001 has 6 divisors (see below), whose sum is σ = 11867165570. Its totient is φ = 5477153328.

The previous prime is 8215729993. The next prime is 8215730041. The reversal of 8215730001 is 1000375128.

It can be written as a sum of positive squares in only one way, i.e., 6161465025 + 2054264976 = 78495^2 + 45324^2 .

It is not a de Polignac number, because 8215730001 - 2³ = 8215729993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8215730041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456429436 + ... + 456429453.

Almost surely, 2^8215730001 is an apocalyptic number.

It is an amenable number.

8215730001 is a deficient number, since it is larger than the sum of its proper divisors (3651435569).

8215730001 is a wasteful number, since it uses less digits than its factorization.

8215730001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912858895 (or 912858892 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 8215730001 is about 90640.6641690141. The cubic root of 8215730001 is about 2017.8182830489.

The spelling of 8215730001 in words is "eight billion, two hundred fifteen million, seven hundred thirty thousand, one".