485452821 has 8 divisors (see below), whose sum is σ = 739737664. Its totient is φ = 277401600.

The previous prime is 485452817. The next prime is 485452829. The reversal of 485452821 is 128254584.

It is a happy number.

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

It is not a de Polignac number, because 485452821 - 2² = 485452817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 485452821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485452829) by changing a digit.

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, 11558380 + ... + 11558421.

It is an arithmetic number, because the mean of its divisors is an integer number (92467208).

Almost surely, 2^485452821 is an apocalyptic number.

It is an amenable number.

485452821 is a deficient number, since it is larger than the sum of its proper divisors (254284843).

485452821 is a wasteful number, since it uses less digits than its factorization.

485452821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23116811.

The product of its digits is 102400, while the sum is 39.

The square root of 485452821 is about 22032.9939182127. The cubic root of 485452821 is about 785.9272427134.

It can be divided in two parts, 4854 and 52821, that added together give a palindrome (57675).

The spelling of 485452821 in words is "four hundred eighty-five million, four hundred fifty-two thousand, eight hundred twenty-one".