497917930689 has 9 divisors (see below), whose sum is σ = 719217846529. Its totient is φ = 331943875860.

The previous prime is 497917930687. The next prime is 497917930717. The reversal of 497917930689 is 986039719794.

The square root of 497917930689 is 705633.

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

497917930689 is a `hidden beast` number, since 4 + 9 + 79 + 179 + 306 + 89 = 666.

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

It is not a de Polignac number, because 497917930689 - 2¹ = 497917930687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497917930681) 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, 1999294 + ... + 2234504.

Almost surely, 2^497917930689 is an apocalyptic number.

497917930689 is the 705633-rd square number.

497917930689 is the 352817-th centered octagonal number.

It is an amenable number.

497917930689 is a deficient number, since it is larger than the sum of its proper divisors (221299915840).

497917930689 is an frugal number, since it uses more digits than its factorization.

497917930689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470428 (or 235214 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 72.

The spelling of 497917930689 in words is "four hundred ninety-seven billion, nine hundred seventeen million, nine hundred thirty thousand, six hundred eighty-nine".