971974585 has 32 divisors (see below), whose sum is σ = 1228983840. Its totient is φ = 736985088.

The previous prime is 971974547. The next prime is 971974603. The reversal of 971974585 is 585479179.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 648262521 + 323712064 = 25461^2 + 17992^2 .

It is a cyclic number.

It is not a de Polignac number, because 971974585 - 2¹³ = 971966393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2244529 + ... + 2244961.

It is an arithmetic number, because the mean of its divisors is an integer number (38405745).

Almost surely, 2^971974585 is an apocalyptic number.

It is an amenable number.

971974585 is a deficient number, since it is larger than the sum of its proper divisors (257009255).

971974585 is a wasteful number, since it uses less digits than its factorization.

971974585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its digits is 3175200, while the sum is 55.

The square root of 971974585 is about 31176.5069403229. The cubic root of 971974585 is about 990.5695410046.

The spelling of 971974585 in words is "nine hundred seventy-one million, nine hundred seventy-four thousand, five hundred eighty-five".