489499697 has 4 divisors (see below), whose sum is σ = 501438756. Its totient is φ = 477560640.

The previous prime is 489499691. The next prime is 489499711. The reversal of 489499697 is 796994984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 186704896 + 302794801 = 13664^2 + 17401^2 .

It is a cyclic number.

It is not a de Polignac number, because 489499697 - 2²⁰ = 488451121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489499691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5969468 + ... + 5969549.

It is an arithmetic number, because the mean of its divisors is an integer number (125359689).

Almost surely, 2^489499697 is an apocalyptic number.

It is an amenable number.

489499697 is a deficient number, since it is larger than the sum of its proper divisors (11939059).

489499697 is a wasteful number, since it uses less digits than its factorization.

489499697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11939058.

The product of its digits is 35271936, while the sum is 65.

The square root of 489499697 is about 22124.6400422696. The cubic root of 489499697 is about 788.1051081805.

The spelling of 489499697 in words is "four hundred eighty-nine million, four hundred ninety-nine thousand, six hundred ninety-seven".