971471885 has 16 divisors (see below), whose sum is σ = 1237875696. Its totient is φ = 729366528.

The previous prime is 971471849. The next prime is 971471887. The reversal of 971471885 is 588174179.

It can be written as a sum of positive squares in 8 ways, for example, as 10843849 + 960628036 = 3293^2 + 30994^2 .

It is a cyclic number.

It is not a de Polignac number, because 971471885 - 2¹² = 971467789 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 (971471887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13817 + ... + 46193.

It is an arithmetic number, because the mean of its divisors is an integer number (77367231).

Almost surely, 2^971471885 is an apocalyptic number.

It is an amenable number.

971471885 is a deficient number, since it is larger than the sum of its proper divisors (266403811).

971471885 is a wasteful number, since it uses less digits than its factorization.

971471885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32752.

The product of its digits is 564480, while the sum is 50.

The square root of 971471885 is about 31168.4437372160. The cubic root of 971471885 is about 990.3987391517.

The spelling of 971471885 in words is "nine hundred seventy-one million, four hundred seventy-one thousand, eight hundred eighty-five".