7986460689 has 9 divisors (see below), whose sum is σ = 11536386043. Its totient is φ = 5324128392.

The previous prime is 7986460679. The next prime is 7986460711. The reversal of 7986460689 is 9860646897.

The square root of 7986460689 is 89367.

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

7986460689 is a `hidden beast` number, since 7 + 98 + 6 + 460 + 6 + 89 = 666.

7986460689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 281132289 + 7705328400 = 16767^2 + 87780^2 .

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

It is not a de Polignac number, because 7986460689 - 2¹⁹ = 7985936401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7986460679) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 253207 + ... + 282995.

Almost surely, 2^7986460689 is an apocalyptic number.

7986460689 is the 89367-th square number.

7986460689 is the 44684-th centered octagonal number.

It is an amenable number.

7986460689 is a deficient number, since it is larger than the sum of its proper divisors (3549925354).

7986460689 is an frugal number, since it uses more digits than its factorization.

7986460689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59584 (or 29792 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The cubic root of 7986460689 is about 1998.8710869809.

The spelling of 7986460689 in words is "seven billion, nine hundred eighty-six million, four hundred sixty thousand, six hundred eighty-nine".