9664860983 has 4 divisors (see below), whose sum is σ = 9926073480. Its totient is φ = 9403648488.

The previous prime is 9664860971. The next prime is 9664861009. The reversal of 9664860983 is 3890684669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3890684669 = 23 ⋅169160203.

It is a cyclic number.

It is not a de Polignac number, because 9664860983 - 2²⁰ = 9663812407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664860913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130606193 + ... + 130606266.

It is an arithmetic number, because the mean of its divisors is an integer number (2481518370).

Almost surely, 2^9664860983 is an apocalyptic number.

9664860983 is a deficient number, since it is larger than the sum of its proper divisors (261212497).

9664860983 is a wasteful number, since it uses less digits than its factorization.

9664860983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261212496.

The product of its (nonzero) digits is 13436928, while the sum is 59.

The square root of 9664860983 is about 98310.0248347034. The cubic root of 9664860983 is about 2130.0928628134.

The spelling of 9664860983 in words is "nine billion, six hundred sixty-four million, eight hundred sixty thousand, nine hundred eighty-three".