971980 has 24 divisors (see below), whose sum is σ = 2130912. Its totient is φ = 371712.

The previous prime is 971977. The next prime is 971981. The reversal of 971980 is 89179.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (971981) 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 7 ways as a sum of consecutive naturals, for example, 597 + ... + 1516.

It is an arithmetic number, because the mean of its divisors is an integer number (88788).

2⁹⁷¹⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

971980 is an abundant number, since it is smaller than the sum of its proper divisors (1158932).

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

971980 is a wasteful number, since it uses less digits than its factorization.

971980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 971980 is about 985.8904604468. The cubic root of 971980 is about 99.0571380533.

The spelling of 971980 in words is "nine hundred seventy-one thousand, nine hundred eighty".