8697720219 has 32 divisors (see below), whose sum is σ = 11974072320. Its totient is φ = 5613009792.

The previous prime is 8697720211. The next prime is 8697720323. The reversal of 8697720219 is 9120277968.

8697720219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8697720219 - 2³ = 8697720211 is a prime.

It is a super-2 number, since 2×8697720219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8697720211) 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 31 ways as a sum of consecutive naturals, for example, 5391457 + ... + 5393069.

It is an arithmetic number, because the mean of its divisors is an integer number (374189760).

Almost surely, 2^8697720219 is an apocalyptic number.

8697720219 is a deficient number, since it is larger than the sum of its proper divisors (3276352101).

8697720219 is a wasteful number, since it uses less digits than its factorization.

8697720219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 8697720219 is about 93261.5688212460. The cubic root of 8697720219 is about 2056.5304511383.

The spelling of 8697720219 in words is "eight billion, six hundred ninety-seven million, seven hundred twenty thousand, two hundred nineteen".