489647169 has 24 divisors (see below), whose sum is σ = 782443584. Its totient is φ = 292572000.

The previous prime is 489647167. The next prime is 489647177. The reversal of 489647169 is 961746984.

It is not a de Polignac number, because 489647169 - 2¹ = 489647167 is a prime.

It is a super-2 number, since 2×489647169² = 479508700219429122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489647167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27802 + ... + 41859.

It is an arithmetic number, because the mean of its divisors is an integer number (32601816).

Almost surely, 2^489647169 is an apocalyptic number.

It is an amenable number.

489647169 is a deficient number, since it is larger than the sum of its proper divisors (292796415).

489647169 is a wasteful number, since it uses less digits than its factorization.

489647169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69749 (or 69746 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 489647169 is about 22127.9725460784. The cubic root of 489647169 is about 788.1842446046.

The spelling of 489647169 in words is "four hundred eighty-nine million, six hundred forty-seven thousand, one hundred sixty-nine".