8072213309 has 16 divisors (see below), whose sum is σ = 8639280000. Its totient is φ = 7515555840.

The previous prime is 8072213263. The next prime is 8072213339. The reversal of 8072213309 is 9033122708.

It is not a de Polignac number, because 8072213309 - 2²⁰ = 8071164733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072213339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185154 + ... + 2188844.

It is an arithmetic number, because the mean of its divisors is an integer number (539955000).

Almost surely, 2^8072213309 is an apocalyptic number.

It is an amenable number.

8072213309 is a deficient number, since it is larger than the sum of its proper divisors (567066691).

8072213309 is a wasteful number, since it uses less digits than its factorization.

8072213309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 8072213309 is about 89845.4968765825. The cubic root of 8072213309 is about 2005.9997591970. Note that the first 3 decimals are identical.

The spelling of 8072213309 in words is "eight billion, seventy-two million, two hundred thirteen thousand, three hundred nine".