847242371 has 4 divisors (see below), whose sum is σ = 855160632. Its totient is φ = 839324112.

The previous prime is 847242323. The next prime is 847242443. The reversal of 847242371 is 173242748.

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 847242371 - 2¹⁰ = 847241347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847242871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3958970 + ... + 3959183.

It is an arithmetic number, because the mean of its divisors is an integer number (213790158).

Almost surely, 2^847242371 is an apocalyptic number.

847242371 is a deficient number, since it is larger than the sum of its proper divisors (7918261).

847242371 is a wasteful number, since it uses less digits than its factorization.

847242371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7918260.

The product of its digits is 75264, while the sum is 38.

The square root of 847242371 is about 29107.4281069283. The cubic root of 847242371 is about 946.2427295885.

The spelling of 847242371 in words is "eight hundred forty-seven million, two hundred forty-two thousand, three hundred seventy-one".