8214340689 has 9 divisors (see below), whose sum is σ = 11865551529. Its totient is φ = 5476045860.

The previous prime is 8214340679. The next prime is 8214340751. The reversal of 8214340689 is 9860434128.

It is a happy number.

The square root of 8214340689 is 90633.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 8214340689 - 2¹⁵ = 8214307921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8214340679) 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 8 ways as a sum of consecutive naturals, for example, 256794 + ... + 287004.

Almost surely, 2^8214340689 is an apocalyptic number.

8214340689 is the 90633-rd square number.

8214340689 is the 45317-th centered octagonal number.

It is an amenable number.

8214340689 is a deficient number, since it is larger than the sum of its proper divisors (3651210840).

8214340689 is an frugal number, since it uses more digits than its factorization.

8214340689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60428 (or 30214 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The cubic root of 8214340689 is about 2017.7045363220.

The spelling of 8214340689 in words is "eight billion, two hundred fourteen million, three hundred forty thousand, six hundred eighty-nine".