971417543 has 4 divisors (see below), whose sum is σ = 978508320. Its totient is φ = 964326768.

The previous prime is 971417507. The next prime is 971417563. The reversal of 971417543 is 345714179.

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

It is a cyclic number.

It is not a de Polignac number, because 971417543 - 2²² = 967223239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 971417543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971417563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3545183 + ... + 3545456.

It is an arithmetic number, because the mean of its divisors is an integer number (244627080).

Almost surely, 2^971417543 is an apocalyptic number.

971417543 is a deficient number, since it is larger than the sum of its proper divisors (7090777).

971417543 is a wasteful number, since it uses less digits than its factorization.

971417543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090776.

The product of its digits is 105840, while the sum is 41.

The square root of 971417543 is about 31167.5719779389. The cubic root of 971417543 is about 990.3802718985.

The spelling of 971417543 in words is "nine hundred seventy-one million, four hundred seventeen thousand, five hundred forty-three".