871224361 has 12 divisors (see below), whose sum is σ = 1015142868. Its totient is φ = 745527552.

The previous prime is 871224353. The next prime is 871224371. The reversal of 871224361 is 163422178.

It can be written as a sum of positive squares in 2 ways, for example, as 427869225 + 443355136 = 20685^2 + 21056^2 .

It is not a de Polignac number, because 871224361 - 2³ = 871224353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871224301) 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 11 ways as a sum of consecutive naturals, for example, 15825 + ... + 44641.

It is an arithmetic number, because the mean of its divisors is an integer number (84595239).

Almost surely, 2^871224361 is an apocalyptic number.

It is an amenable number.

871224361 is a deficient number, since it is larger than the sum of its proper divisors (143918507).

871224361 is a wasteful number, since it uses less digits than its factorization.

871224361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29448 (or 29441 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 871224361 is about 29516.5099732336. The cubic root of 871224361 is about 955.0878864322.

The spelling of 871224361 in words is "eight hundred seventy-one million, two hundred twenty-four thousand, three hundred sixty-one".