489958 has 16 divisors (see below), whose sum is σ = 852480. Its totient is φ = 206856.

The previous prime is 489943. The next prime is 489959. The reversal of 489958 is 859984.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489959) by changing a digit.

489958 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885 + ... + 1327.

It is an arithmetic number, because the mean of its divisors is an integer number (53280).

2⁴⁸⁹⁹⁵⁸ is an apocalyptic number.

489958 is the 443-rd heptagonal number.

489958 is a deficient number, since it is larger than the sum of its proper divisors (362522).

489958 is a wasteful number, since it uses less digits than its factorization.

489958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its digits is 103680, while the sum is 43.

The square root of 489958 is about 699.9699993571. The cubic root of 489958 is about 78.8350990709.

The spelling of 489958 in words is "four hundred eighty-nine thousand, nine hundred fifty-eight".