871172897 has 16 divisors (see below), whose sum is σ = 1013913600. Its totient is φ = 733117392.

The previous prime is 871172893. The next prime is 871172941. The reversal of 871172897 is 798271178.

It is a happy number.

871172897 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 871172897 - 2² = 871172893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (871172893) 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, 90104 + ... + 99302.

It is an arithmetic number, because the mean of its divisors is an integer number (63369600).

Almost surely, 2^871172897 is an apocalyptic number.

It is an amenable number.

871172897 is a deficient number, since it is larger than the sum of its proper divisors (142740703).

871172897 is a wasteful number, since it uses less digits than its factorization.

871172897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452.

The product of its digits is 395136, while the sum is 50.

The square root of 871172897 is about 29515.6381770749. The cubic root of 871172897 is about 955.0690800975.

The spelling of 871172897 in words is "eight hundred seventy-one million, one hundred seventy-two thousand, eight hundred ninety-seven".