970857985 has 8 divisors (see below), whose sum is σ = 1196517096. Its totient is φ = 755694720.

The previous prime is 970857967. The next prime is 970858019. The reversal of 970857985 is 589758079.

970857985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 104203264 + 866654721 = 10208^2 + 29439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 970857985 - 2⁷ = 970857857 is a prime.

It is a Duffinian 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, 2623756 + ... + 2624125.

It is an arithmetic number, because the mean of its divisors is an integer number (149564637).

Almost surely, 2^970857985 is an apocalyptic number.

It is an amenable number.

970857985 is a deficient number, since it is larger than the sum of its proper divisors (225659111).

970857985 is a wasteful number, since it uses less digits than its factorization.

970857985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247923.

The product of its (nonzero) digits is 6350400, while the sum is 58.

The square root of 970857985 is about 31158.5940793226. The cubic root of 970857985 is about 990.1900750574.

The spelling of 970857985 in words is "nine hundred seventy million, eight hundred fifty-seven thousand, nine hundred eighty-five".