971546885 has 4 divisors (see below), whose sum is σ = 1165856268. Its totient is φ = 777237504.

The previous prime is 971546879. The next prime is 971546899. The reversal of 971546885 is 588645179.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 382319809 + 589227076 = 19553^2 + 24274^2 .

It is a cyclic number.

It is not a de Polignac number, because 971546885 - 2²⁸ = 703111429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97154684 + ... + 97154693.

It is an arithmetic number, because the mean of its divisors is an integer number (291464067).

Almost surely, 2^971546885 is an apocalyptic number.

It is an amenable number.

971546885 is a deficient number, since it is larger than the sum of its proper divisors (194309383).

971546885 is a wasteful number, since it uses less digits than its factorization.

971546885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194309382.

The product of its digits is 2419200, while the sum is 53.

The square root of 971546885 is about 31169.6468539507. The cubic root of 971546885 is about 990.4242255623.

The spelling of 971546885 in words is "nine hundred seventy-one million, five hundred forty-six thousand, eight hundred eighty-five".