489870 has 24 divisors (see below), whose sum is σ = 1273896. Its totient is φ = 130608.

The previous prime is 489869. The next prime is 489871. The reversal of 489870 is 78984.

489870 = T₃₆ + T₃₇ + ... + T₁₄₃.

It is an interprime number because it is at equal distance from previous prime (489869) and next prime (489871).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2632 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (53079).

2⁴⁸⁹⁸⁷⁰ is an apocalyptic number.

489870 is an abundant number, since it is smaller than the sum of its proper divisors (784026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489870 is a wasteful number, since it uses less digits than its factorization.

489870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5456 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 489870 is about 699.9071366974. The cubic root of 489870 is about 78.8303790037.

The spelling of 489870 in words is "four hundred eighty-nine thousand, eight hundred seventy".