489122785 has 8 divisors (see below), whose sum is σ = 592332840. Its totient is φ = 387707904.

The previous prime is 489122779. The next prime is 489122797. The reversal of 489122785 is 587221984.

It can be written as a sum of positive squares in 4 ways, for example, as 1993744 + 487129041 = 1412^2 + 22071^2 .

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 489122785 - 2¹⁹ = 488598497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448192 + ... + 449281.

It is an arithmetic number, because the mean of its divisors is an integer number (74041605).

Almost surely, 2^489122785 is an apocalyptic number.

It is an amenable number.

489122785 is a deficient number, since it is larger than the sum of its proper divisors (103210055).

489122785 is a wasteful number, since it uses less digits than its factorization.

489122785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897587.

The product of its digits is 322560, while the sum is 46.

The square root of 489122785 is about 22116.1204780585. The cubic root of 489122785 is about 787.9027774141.

The spelling of 489122785 in words is "four hundred eighty-nine million, one hundred twenty-two thousand, seven hundred eighty-five".