971982575 has 6 divisors (see below), whose sum is σ = 1205258424. Its totient is φ = 777586040.

The previous prime is 971982551. The next prime is 971982581. The reversal of 971982575 is 575289179.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-971982575 is a prime.

It is a super-2 number, since 2×971982575² = 1889500252207261250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19439627 + ... + 19439676.

It is an arithmetic number, because the mean of its divisors is an integer number (200876404).

Almost surely, 2^971982575 is an apocalyptic number.

971982575 is a deficient number, since it is larger than the sum of its proper divisors (233275849).

971982575 is a wasteful number, since it uses less digits than its factorization.

971982575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38879313 (or 38879308 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 53.

The square root of 971982575 is about 31176.6350814195. The cubic root of 971982575 is about 990.5722552830.

The spelling of 971982575 in words is "nine hundred seventy-one million, nine hundred eighty-two thousand, five hundred seventy-five".