489612997 has 4 divisors (see below), whose sum is σ = 489798976. Its totient is φ = 489427020.

The previous prime is 489612989. The next prime is 489613001. The reversal of 489612997 is 799216984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489612997 - 2³ = 489612989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489612917) 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 3 ways as a sum of consecutive naturals, for example, 88983 + ... + 94324.

It is an arithmetic number, because the mean of its divisors is an integer number (122449744).

Almost surely, 2^489612997 is an apocalyptic number.

It is an amenable number.

489612997 is a deficient number, since it is larger than the sum of its proper divisors (185979).

489612997 is a wasteful number, since it uses less digits than its factorization.

489612997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185978.

The product of its digits is 1959552, while the sum is 55.

The square root of 489612997 is about 22127.2003877581. The cubic root of 489612997 is about 788.1659086406.

The spelling of 489612997 in words is "four hundred eighty-nine million, six hundred twelve thousand, nine hundred ninety-seven".