971923168 has 48 divisors (see below), whose sum is σ = 2006711280. Its totient is φ = 462744576.

The previous prime is 971923157. The next prime is 971923177. The reversal of 971923168 is 861329179.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60571 + ... + 74917.

It is an arithmetic number, because the mean of its divisors is an integer number (41806485).

Almost surely, 2^971923168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971923168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003355640).

971923168 is an abundant number, since it is smaller than the sum of its proper divisors (1034788112).

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

971923168 is a wasteful number, since it uses less digits than its factorization.

971923168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14459 (or 14451 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 971923168 is about 31175.6823181145. The cubic root of 971923168 is about 990.5520738084.

The spelling of 971923168 in words is "nine hundred seventy-one million, nine hundred twenty-three thousand, one hundred sixty-eight".