489853649 has 4 divisors (see below), whose sum is σ = 515635440. Its totient is φ = 464071860.

The previous prime is 489853643. The next prime is 489853667. The reversal of 489853649 is 946358984.

It is a happy number.

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 489853649 - 2¹² = 489849553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489853594 and 489853603.

It is not an unprimeable number, because it can be changed into a prime (489853643) 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, 12890867 + ... + 12890904.

It is an arithmetic number, because the mean of its divisors is an integer number (128908860).

Almost surely, 2^489853649 is an apocalyptic number.

It is an amenable number.

489853649 is a deficient number, since it is larger than the sum of its proper divisors (25781791).

489853649 is a wasteful number, since it uses less digits than its factorization.

489853649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25781790.

The product of its digits is 7464960, while the sum is 56.

The square root of 489853649 is about 22132.6376421790. The cubic root of 489853649 is about 788.2950192075.

The spelling of 489853649 in words is "four hundred eighty-nine million, eight hundred fifty-three thousand, six hundred forty-nine".