854220321 has 12 divisors (see below), whose sum is σ = 1235705172. Its totient is φ = 568634976.

The previous prime is 854220307. The next prime is 854220329. The reversal of 854220321 is 123022458.

854220321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 801512721 + 52707600 = 28311^2 + 7260^2 .

It is not a de Polignac number, because 854220321 - 2⁷ = 854220193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (854220329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64006 + ... + 76191.

It is an arithmetic number, because the mean of its divisors is an integer number (102975431).

Almost surely, 2^854220321 is an apocalyptic number.

It is an amenable number.

854220321 is a deficient number, since it is larger than the sum of its proper divisors (381484851).

854220321 is a wasteful number, since it uses less digits than its factorization.

854220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140880 (or 140877 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 854220321 is about 29227.0477640148. The cubic root of 854220321 is about 948.8334049482.

Adding to 854220321 its reverse (123022458), we get a palindrome (977242779).

The spelling of 854220321 in words is "eight hundred fifty-four million, two hundred twenty thousand, three hundred twenty-one".