489238121 has 8 divisors (see below), whose sum is σ = 518214024. Its totient is φ = 460284160.

The previous prime is 489238109. The next prime is 489238147. The reversal of 489238121 is 121832984.

It can be written as a sum of positive squares in 4 ways, for example, as 89038096 + 400200025 = 9436^2 + 20005^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489238121 - 2¹⁰ = 489237097 is a prime.

It is a super-3 number, since 3×489238121³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (489208121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71051 + ... + 77631.

It is an arithmetic number, because the mean of its divisors is an integer number (64776753).

Almost surely, 2^489238121 is an apocalyptic number.

It is an amenable number.

489238121 is a deficient number, since it is larger than the sum of its proper divisors (28975903).

489238121 is a wasteful number, since it uses less digits than its factorization.

489238121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971.

The product of its digits is 27648, while the sum is 38.

The square root of 489238121 is about 22118.7278341228. The cubic root of 489238121 is about 787.9647021603.

The spelling of 489238121 in words is "four hundred eighty-nine million, two hundred thirty-eight thousand, one hundred twenty-one".