873580221 has 10 divisors (see below), whose sum is σ = 1304977982. Its totient is φ = 582386760.

The previous prime is 873580199. The next prime is 873580259. The reversal of 873580221 is 122085378.

873580221 is a `hidden beast` number, since 8 + 73 + 580 + 2 + 2 + 1 = 666.

873580221 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 only one way, i.e., 805764996 + 67815225 = 28386^2 + 8235^2 .

It is not a de Polignac number, because 873580221 - 2²⁹ = 336709309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873580121) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5392390 + ... + 5392551.

Almost surely, 2^873580221 is an apocalyptic number.

873580221 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

873580221 is a deficient number, since it is larger than the sum of its proper divisors (431397761).

873580221 is a wasteful number, since it uses less digits than its factorization.

873580221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10784953 (or 10784944 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 873580221 is about 29556.3905272616. The cubic root of 873580221 is about 955.9479895171.

The spelling of 873580221 in words is "eight hundred seventy-three million, five hundred eighty thousand, two hundred twenty-one".