8540070321 has 8 divisors (see below), whose sum is σ = 11491226560. Its totient is φ = 5641147152.

The previous prime is 8540070311. The next prime is 8540070323. The reversal of 8540070321 is 1230700458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8540070321 - 2¹⁷ = 8539939249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8540070323) 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 7 ways as a sum of consecutive naturals, for example, 13057885 + ... + 13058538.

It is an arithmetic number, because the mean of its divisors is an integer number (1436403320).

Almost surely, 2^8540070321 is an apocalyptic number.

It is an amenable number.

8540070321 is a deficient number, since it is larger than the sum of its proper divisors (2951156239).

8540070321 is a wasteful number, since it uses less digits than its factorization.

8540070321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26116535.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 8540070321 is about 92412.5008913837. The cubic root of 8540070321 is about 2044.0294508805.

Adding to 8540070321 its reverse (1230700458), we get a palindrome (9770770779).

The spelling of 8540070321 in words is "eight billion, five hundred forty million, seventy thousand, three hundred twenty-one".