971543432 has 8 divisors (see below), whose sum is σ = 1821643950. Its totient is φ = 485771712.

The previous prime is 971543423. The next prime is 971543459. The reversal of 971543432 is 234345179.

It can be written as a sum of positive squares in only one way, i.e., 859310596 + 112232836 = 29314^2 + 10594^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60721457 + ... + 60721472.

Almost surely, 2^971543432 is an apocalyptic number.

It is an amenable number.

971543432 is a deficient number, since it is larger than the sum of its proper divisors (850100518).

971543432 is a wasteful number, since it uses less digits than its factorization.

971543432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121442935 (or 121442931 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 971543432 is about 31169.5914634761. The cubic root of 971543432 is about 990.4230521967.

The spelling of 971543432 in words is "nine hundred seventy-one million, five hundred forty-three thousand, four hundred thirty-two".