8722087309 has 16 divisors (see below), whose sum is σ = 9509391360. Its totient is φ = 7951616640.

The previous prime is 8722087291. The next prime is 8722087321. The reversal of 8722087309 is 9037802278.

8722087309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8722087309 is a prime.

It is a super-2 number, since 2×8722087309² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722087709) 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 15 ways as a sum of consecutive naturals, for example, 1142784 + ... + 1150390.

It is an arithmetic number, because the mean of its divisors is an integer number (594336960).

Almost surely, 2^8722087309 is an apocalyptic number.

8722087309 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8722087309 is a deficient number, since it is larger than the sum of its proper divisors (787304051).

8722087309 is a wasteful number, since it uses less digits than its factorization.

8722087309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 8722087309 is about 93392.1158824448. The cubic root of 8722087309 is about 2058.4491508002.

The spelling of 8722087309 in words is "eight billion, seven hundred twenty-two million, eighty-seven thousand, three hundred nine".