489521427 has 8 divisors (see below), whose sum is σ = 668614800. Its totient is φ = 318387840.

The previous prime is 489521423. The next prime is 489521441. The reversal of 489521427 is 724125984.

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

It is not a de Polignac number, because 489521427 - 2² = 489521423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (489521423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989802 + ... + 1990047.

It is an arithmetic number, because the mean of its divisors is an integer number (83576850).

Almost surely, 2^489521427 is an apocalyptic number.

489521427 is a deficient number, since it is larger than the sum of its proper divisors (179093373).

489521427 is a wasteful number, since it uses less digits than its factorization.

489521427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979893.

The product of its digits is 161280, while the sum is 42.

The square root of 489521427 is about 22125.1311182555. The cubic root of 489521427 is about 788.1167699313.

The spelling of 489521427 in words is "four hundred eighty-nine million, five hundred twenty-one thousand, four hundred twenty-seven".