871655449 has 16 divisors (see below), whose sum is σ = 1064851200. Its totient is φ = 697213440.

The previous prime is 871655443. The next prime is 871655453. The reversal of 871655449 is 944556178.

It is a happy number.

871655449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 871655449 - 2³ = 871655441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (871655441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59424 + ... + 72625.

It is an arithmetic number, because the mean of its divisors is an integer number (66553200).

Almost surely, 2^871655449 is an apocalyptic number.

It is an amenable number.

871655449 is a deficient number, since it is larger than the sum of its proper divisors (193195751).

871655449 is a wasteful number, since it uses less digits than its factorization.

871655449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132120.

The product of its digits is 1209600, while the sum is 49.

The square root of 871655449 is about 29523.8115594853. The cubic root of 871655449 is about 955.2453885466.

The spelling of 871655449 in words is "eight hundred seventy-one million, six hundred fifty-five thousand, four hundred forty-nine".