485989 has 4 divisors (see below), whose sum is σ = 555424. Its totient is φ = 416556.

The previous prime is 485977. The next prime is 485993. The reversal of 485989 is 989584.

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 not a de Polignac number, because 485989 - 2¹³ = 477797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485909) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34707 + ... + 34720.

It is an arithmetic number, because the mean of its divisors is an integer number (138856).

2⁴⁸⁵⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

485989 is a deficient number, since it is larger than the sum of its proper divisors (69435).

485989 is an equidigital number, since it uses as much as digits as its factorization.

485989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69434.

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

The square root of 485989 is about 697.1291128622. The cubic root of 485989 is about 78.6216486499.

The spelling of 485989 in words is "four hundred eighty-five thousand, nine hundred eighty-nine".