489860465 has 4 divisors (see below), whose sum is σ = 587832564. Its totient is φ = 391888368.

The previous prime is 489860443. The next prime is 489860467. The reversal of 489860465 is 564068984.

It is a happy number.

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 259306609 + 230553856 = 16103^2 + 15184^2 .

It is a cyclic number.

It is not a de Polignac number, because 489860465 - 2²⁰ = 488811889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489860467) 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, 48986042 + ... + 48986051.

It is an arithmetic number, because the mean of its divisors is an integer number (146958141).

Almost surely, 2^489860465 is an apocalyptic number.

It is an amenable number.

489860465 is a deficient number, since it is larger than the sum of its proper divisors (97972099).

489860465 is an equidigital number, since it uses as much as digits as its factorization.

489860465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97972098.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 489860465 is about 22132.7916223869. The cubic root of 489860465 is about 788.2986753975.

The spelling of 489860465 in words is "four hundred eighty-nine million, eight hundred sixty thousand, four hundred sixty-five".