9643523047 has 4 divisors (see below), whose sum is σ = 9644142760. Its totient is φ = 9642903336.

The previous prime is 9643522897. The next prime is 9643523051. The reversal of 9643523047 is 7403253469.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9643523047 - 2¹⁹ = 9642998759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9643522994 and 9643523012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9643523077) 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, 285897 + ... + 317842.

It is an arithmetic number, because the mean of its divisors is an integer number (2411035690).

Almost surely, 2^9643523047 is an apocalyptic number.

9643523047 is a deficient number, since it is larger than the sum of its proper divisors (619713).

9643523047 is a wasteful number, since it uses less digits than its factorization.

9643523047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619712.

The product of its (nonzero) digits is 544320, while the sum is 43.

The square root of 9643523047 is about 98201.4411655959. The cubic root of 9643523047 is about 2128.5241120021.

The spelling of 9643523047 in words is "nine billion, six hundred forty-three million, five hundred twenty-three thousand, forty-seven".