489107321 has 4 divisors (see below), whose sum is σ = 489955572. Its totient is φ = 488259072.

The previous prime is 489107317. The next prime is 489107341. The reversal of 489107321 is 123701984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 421275625 + 67831696 = 20525^2 + 8236^2 .

It is a cyclic number.

It is not a de Polignac number, because 489107321 - 2² = 489107317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489107341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423260 + ... + 424413.

It is an arithmetic number, because the mean of its divisors is an integer number (122488893).

Almost surely, 2^489107321 is an apocalyptic number.

It is an amenable number.

489107321 is a deficient number, since it is larger than the sum of its proper divisors (848251).

489107321 is an equidigital number, since it uses as much as digits as its factorization.

489107321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848250.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 489107321 is about 22115.7708660585. The cubic root of 489107321 is about 787.8944739387.

The spelling of 489107321 in words is "four hundred eighty-nine million, one hundred seven thousand, three hundred twenty-one".