489913669 has 16 divisors (see below), whose sum is σ = 566881920. Its totient is φ = 414722880.

The previous prime is 489913643. The next prime is 489913691. The reversal of 489913669 is 966319984.

It is a cyclic number.

It is not a de Polignac number, because 489913669 - 2¹³ = 489905477 is a prime.

It is a super-2 number, since 2×489913669² = 480030806146083122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489913969) 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 15 ways as a sum of consecutive naturals, for example, 208827 + ... + 211159.

It is an arithmetic number, because the mean of its divisors is an integer number (35430120).

Almost surely, 2^489913669 is an apocalyptic number.

It is an amenable number.

489913669 is a deficient number, since it is larger than the sum of its proper divisors (76968251).

489913669 is a wasteful number, since it uses less digits than its factorization.

489913669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700.

The product of its digits is 2519424, while the sum is 55.

The square root of 489913669 is about 22133.9935167606. The cubic root of 489913669 is about 788.3272135408.

The spelling of 489913669 in words is "four hundred eighty-nine million, nine hundred thirteen thousand, six hundred sixty-nine".