971320 has 32 divisors (see below), whose sum is σ = 2498400. Its totient is φ = 332928.

The previous prime is 971309. The next prime is 971339. The reversal of 971320 is 23179.

971320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 971291 and 971300.

It is a congruent number.

It is an unprimeable number.

971320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455 + ... + 2014.

It is an arithmetic number, because the mean of its divisors is an integer number (78075).

2⁹⁷¹³²⁰ is an apocalyptic number.

It is an amenable number.

971320 is an abundant number, since it is smaller than the sum of its proper divisors (1527080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971320 is a wasteful number, since it uses less digits than its factorization.

971320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 971320 is about 985.5556808217. Note that the first 3 decimals coincide. The cubic root of 971320 is about 99.0347121754.

Adding to 971320 its reverse (23179), we get a palindrome (994499).

The spelling of 971320 in words is "nine hundred seventy-one thousand, three hundred twenty".