853224621 has 8 divisors (see below), whose sum is σ = 1197508320. Its totient is φ = 538878672.

The previous prime is 853224613. The next prime is 853224623. The reversal of 853224621 is 126422358.

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

It is not a de Polignac number, because 853224621 - 2³ = 853224613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853224623) 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, 7484370 + ... + 7484483.

It is an arithmetic number, because the mean of its divisors is an integer number (149688540).

Almost surely, 2^853224621 is an apocalyptic number.

It is an amenable number.

853224621 is a deficient number, since it is larger than the sum of its proper divisors (344283699).

853224621 is a wasteful number, since it uses less digits than its factorization.

853224621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14968875.

The product of its digits is 23040, while the sum is 33.

The square root of 853224621 is about 29210.0089181773. The cubic root of 853224621 is about 948.4646005107.

Adding to 853224621 its reverse (126422358), we get a palindrome (979646979).

It can be divided in two parts, 8532 and 24621, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 853224621 in words is "eight hundred fifty-three million, two hundred twenty-four thousand, six hundred twenty-one".