172871852 has 6 divisors (see below), whose sum is σ = 302525748. Its totient is φ = 86435924.

The previous prime is 172871791. The next prime is 172871857. The reversal of 172871852 is 258178271.

It is not an unprimeable number, because it can be changed into a prime (172871857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21608978 + ... + 21608985.

It is an arithmetic number, because the mean of its divisors is an integer number (50420958).

Almost surely, 2^172871852 is an apocalyptic number.

It is an amenable number.

172871852 is a deficient number, since it is larger than the sum of its proper divisors (129653896).

172871852 is a wasteful number, since it uses less digits than its factorization.

172871852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43217967 (or 43217965 counting only the distinct ones).

The product of its digits is 62720, while the sum is 41.

The square root of 172871852 is about 13148.0740794992. The cubic root of 172871852 is about 557.0678501322.

The spelling of 172871852 in words is "one hundred seventy-two million, eight hundred seventy-one thousand, eight hundred fifty-two".