8869394747 has 4 divisors (see below), whose sum is σ = 8947885080. Its totient is φ = 8790904416.

The previous prime is 8869394719. The next prime is 8869394767. The reversal of 8869394747 is 7474939688.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8869394747 is a prime.

It is a super-2 number, since 2×8869394747² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8869394707) 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, 39244997 + ... + 39245222.

It is an arithmetic number, because the mean of its divisors is an integer number (2236971270).

Almost surely, 2^8869394747 is an apocalyptic number.

8869394747 is a deficient number, since it is larger than the sum of its proper divisors (78490333).

8869394747 is a wasteful number, since it uses less digits than its factorization.

8869394747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78490332.

The product of its digits is 73156608, while the sum is 65.

The square root of 8869394747 is about 94177.4641142986. The cubic root of 8869394747 is about 2069.9729081536.

The spelling of 8869394747 in words is "eight billion, eight hundred sixty-nine million, three hundred ninety-four thousand, seven hundred forty-seven".