489770 has 32 divisors (see below), whose sum is σ = 969408. Its totient is φ = 177408.

The previous prime is 489761. The next prime is 489791. The reversal of 489770 is 77984.

489770 = 85² + 86² + ... + 127².

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 489770.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7277 + ... + 7343.

It is an arithmetic number, because the mean of its divisors is an integer number (30294).

2⁴⁸⁹⁷⁷⁰ is an apocalyptic number.

489770 is a deficient number, since it is larger than the sum of its proper divisors (479638).

489770 is a wasteful number, since it uses less digits than its factorization.

489770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 489770 is about 699.8356950028. The cubic root of 489770 is about 78.8250146047.

The spelling of 489770 in words is "four hundred eighty-nine thousand, seven hundred seventy".