972871 has 4 divisors (see below), whose sum is σ = 986272. Its totient is φ = 959472.

The previous prime is 972869. The next prime is 972887. The reversal of 972871 is 178279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178279 = 17 ⋅10487.

It is a cyclic number.

It is not a de Polignac number, because 972871 - 2¹ = 972869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6591 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (246568).

2⁹⁷²⁸⁷¹ is an apocalyptic number.

972871 is a deficient number, since it is larger than the sum of its proper divisors (13401).

972871 is a wasteful number, since it uses less digits than its factorization.

972871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13400.

The product of its digits is 7056, while the sum is 34.

The square root of 972871 is about 986.3422326961. The cubic root of 972871 is about 99.0873968909.

The spelling of 972871 in words is "nine hundred seventy-two thousand, eight hundred seventy-one".