872706171 has 4 divisors (see below), whose sum is σ = 1163608232. Its totient is φ = 581804112.

The previous prime is 872706139. The next prime is 872706221. The reversal of 872706171 is 171607278.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 872706171 - 2⁵ = 872706139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872706671) 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 in 3 ways as a sum of consecutive naturals, for example, 145451026 + ... + 145451031.

It is an arithmetic number, because the mean of its divisors is an integer number (290902058).

Almost surely, 2^872706171 is an apocalyptic number.

872706171 is a deficient number, since it is larger than the sum of its proper divisors (290902061).

872706171 is a wasteful number, since it uses less digits than its factorization.

872706171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290902060.

The product of its (nonzero) digits is 32928, while the sum is 39.

The square root of 872706171 is about 29541.6006844585. The cubic root of 872706171 is about 955.6290624396.

The spelling of 872706171 in words is "eight hundred seventy-two million, seven hundred six thousand, one hundred seventy-one".