2381798947 has 4 divisors (see below), whose sum is σ = 2598326136. Its totient is φ = 2165271760.

The previous prime is 2381798933. The next prime is 2381798963. The reversal of 2381798947 is 7498971832.

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 2381798947 - 2¹¹ = 2381796899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2381798891 and 2381798900.

It is not an unprimeable number, because it can be changed into a prime (2381798977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108263578 + ... + 108263599.

It is an arithmetic number, because the mean of its divisors is an integer number (649581534).

Almost surely, 2^2381798947 is an apocalyptic number.

2381798947 is a deficient number, since it is larger than the sum of its proper divisors (216527189).

2381798947 is a wasteful number, since it uses less digits than its factorization.

2381798947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216527188.

The product of its digits is 6096384, while the sum is 58.

The square root of 2381798947 is about 48803.6775970828. The cubic root of 2381798947 is about 1335.4727567658.

The spelling of 2381798947 in words is "two billion, three hundred eighty-one million, seven hundred ninety-eight thousand, nine hundred forty-seven".