9640686970 has 8 divisors (see below), whose sum is σ = 17353236564. Its totient is φ = 3856274784.

The previous prime is 9640686943. The next prime is 9640687003. The reversal of 9640686970 is 796860469.

It is a Cunningham number, because it is equal to 98187²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 9640686969 + 1 = 98187^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482034339 + ... + 482034358.

Almost surely, 2^9640686970 is an apocalyptic number.

9640686970 is a deficient number, since it is larger than the sum of its proper divisors (7712549594).

9640686970 is a wasteful number, since it uses less digits than its factorization.

9640686970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964068704.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 9640686970 is about 98187.0000050923. Note that the first 5 decimals coincide. The cubic root of 9640686970 is about 2128.3154313459.

The spelling of 9640686970 in words is "nine billion, six hundred forty million, six hundred eighty-six thousand, nine hundred seventy".