489771 has 6 divisors (see below), whose sum is σ = 707460. Its totient is φ = 326508.

The previous prime is 489761. The next prime is 489791. The reversal of 489771 is 177984.

It is not a de Polignac number, because 489771 - 2¹⁵ = 457003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27201 + ... + 27218.

It is an arithmetic number, because the mean of its divisors is an integer number (117910).

2⁴⁸⁹⁷⁷¹ is an apocalyptic number.

489771 is a deficient number, since it is larger than the sum of its proper divisors (217689).

489771 is a wasteful number, since it uses less digits than its factorization.

489771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54425 (or 54422 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 489771 is about 699.8364094558. The cubic root of 489771 is about 78.8250682523.

The spelling of 489771 in words is "four hundred eighty-nine thousand, seven hundred seventy-one".