8469238647 has 4 divisors (see below), whose sum is σ = 11292318200. Its totient is φ = 5646159096.

The previous prime is 8469238643. The next prime is 8469238663. The reversal of 8469238647 is 7468329648.

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

It is not a de Polignac number, because 8469238647 - 2² = 8469238643 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 (8469238643) 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, 1411539772 + ... + 1411539777.

It is an arithmetic number, because the mean of its divisors is an integer number (2823079550).

Almost surely, 2^8469238647 is an apocalyptic number.

8469238647 is a deficient number, since it is larger than the sum of its proper divisors (2823079553).

8469238647 is a wasteful number, since it uses less digits than its factorization.

8469238647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823079552.

The product of its digits is 13934592, while the sum is 57.

The square root of 8469238647 is about 92028.4665035770. The cubic root of 8469238647 is about 2038.3626685699.

The spelling of 8469238647 in words is "eight billion, four hundred sixty-nine million, two hundred thirty-eight thousand, six hundred forty-seven".