971232216 has 32 divisors (see below), whose sum is σ = 2430259200. Its totient is φ = 323453600.

The previous prime is 971232173. The next prime is 971232221. The reversal of 971232216 is 612232179.

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, 10045 + ... + 45203.

It is an arithmetic number, because the mean of its divisors is an integer number (75945600).

Almost surely, 2^971232216 is an apocalyptic number.

It is an amenable number.

971232216 is an abundant number, since it is smaller than the sum of its proper divisors (1459026984).

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

971232216 is a wasteful number, since it uses less digits than its factorization.

971232216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36319 (or 36315 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 971232216 is about 31164.5987620569. The cubic root of 971232216 is about 990.3172863233.

The spelling of 971232216 in words is "nine hundred seventy-one million, two hundred thirty-two thousand, two hundred sixteen".