8306021213 has 12 divisors (see below), whose sum is σ = 9726102432. Its totient is φ = 7072291800.

The previous prime is 8306021179. The next prime is 8306021219. The reversal of 8306021213 is 3121206038.

It is not a de Polignac number, because 8306021213 - 2¹⁶ = 8305955677 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 (8306021219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553895 + ... + 568692.

It is an arithmetic number, because the mean of its divisors is an integer number (810508536).

Almost surely, 2^8306021213 is an apocalyptic number.

It is an amenable number.

8306021213 is a deficient number, since it is larger than the sum of its proper divisors (1420081219).

8306021213 is a wasteful number, since it uses less digits than its factorization.

8306021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122752 (or 1122745 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 8306021213 is about 91137.3754998464. The cubic root of 8306021213 is about 2025.1833365889.

The spelling of 8306021213 in words is "eight billion, three hundred six million, twenty-one thousand, two hundred thirteen".