489397497 has 8 divisors (see below), whose sum is σ = 686873760. Its totient is φ = 309093120.

The previous prime is 489397487. The next prime is 489397499. The reversal of 489397497 is 794793984.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 489397497 - 2⁴ = 489397481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489397497.

It is not an unprimeable number, because it can be changed into a prime (489397499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4292904 + ... + 4293017.

It is an arithmetic number, because the mean of its divisors is an integer number (85859220).

Almost surely, 2^489397497 is an apocalyptic number.

It is an amenable number.

489397497 is a deficient number, since it is larger than the sum of its proper divisors (197476263).

489397497 is a wasteful number, since it uses less digits than its factorization.

489397497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8585943.

The product of its digits is 13716864, while the sum is 60.

The square root of 489397497 is about 22122.3302796066. The cubic root of 489397497 is about 788.0502562921.

The spelling of 489397497 in words is "four hundred eighty-nine million, three hundred ninety-seven thousand, four hundred ninety-seven".