872505271 has 8 divisors (see below), whose sum is σ = 964863504. Its totient is φ = 782320320.

The previous prime is 872505269. The next prime is 872505287. The reversal of 872505271 is 172505278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 872505271 - 2¹ = 872505269 is a prime.

It is a super-2 number, since 2×872505271² = 1522530895845566882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872505271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872505211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542476 + ... + 544081.

It is an arithmetic number, because the mean of its divisors is an integer number (120607938).

Almost surely, 2^872505271 is an apocalyptic number.

872505271 is a deficient number, since it is larger than the sum of its proper divisors (92358233).

872505271 is a wasteful number, since it uses less digits than its factorization.

872505271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086641.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 872505271 is about 29538.2001990643. The cubic root of 872505271 is about 955.5557270992. Note that the first 3 decimals are identical.

The spelling of 872505271 in words is "eight hundred seventy-two million, five hundred five thousand, two hundred seventy-one".