489637 has 4 divisors (see below), whose sum is σ = 491040. Its totient is φ = 488236.

The previous prime is 489631. The next prime is 489653. The reversal of 489637 is 736984.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 489637 - 2¹¹ = 487589 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 489596 and 489605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489631) 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, 288 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (122760).

2⁴⁸⁹⁶³⁷ is an apocalyptic number.

It is an amenable number.

489637 is a deficient number, since it is larger than the sum of its proper divisors (1403).

489637 is an equidigital number, since it uses as much as digits as its factorization.

489637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 36288, while the sum is 37.

The square root of 489637 is about 699.7406662471. The cubic root of 489637 is about 78.8178788226.

The spelling of 489637 in words is "four hundred eighty-nine thousand, six hundred thirty-seven".