824541421 has 16 divisors (see below), whose sum is σ = 940769280. Its totient is φ = 715342320.

The previous prime is 824541397. The next prime is 824541433. The reversal of 824541421 is 124145428.

It is not a de Polignac number, because 824541421 - 2²¹ = 822444269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (824541721) 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 15 ways as a sum of consecutive naturals, for example, 113620 + ... + 120658.

It is an arithmetic number, because the mean of its divisors is an integer number (58798080).

Almost surely, 2^824541421 is an apocalyptic number.

It is an amenable number.

824541421 is a deficient number, since it is larger than the sum of its proper divisors (116227859).

824541421 is a wasteful number, since it uses less digits than its factorization.

824541421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536.

The product of its digits is 10240, while the sum is 31.

The square root of 824541421 is about 28714.8292873212. The cubic root of 824541421 is about 937.7149192836.

Adding to 824541421 its reverse (124145428), we get a palindrome (948686849).

It can be divided in two parts, 824 and 541421, that added together give a palindrome (542245).

The spelling of 824541421 in words is "eight hundred twenty-four million, five hundred forty-one thousand, four hundred twenty-one".