2047543217 has 4 divisors (see below), whose sum is σ = 2053247040. Its totient is φ = 2041839396.

The previous prime is 2047543181. The next prime is 2047543219. The reversal of 2047543217 is 7123457402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2047543217 - 2⁶ = 2047543153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2047543219) 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, 2851373 + ... + 2852090.

It is an arithmetic number, because the mean of its divisors is an integer number (513311760).

Almost surely, 2^2047543217 is an apocalyptic number.

It is an amenable number.

2047543217 is a deficient number, since it is larger than the sum of its proper divisors (5703823).

2047543217 is an equidigital number, since it uses as much as digits as its factorization.

2047543217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703822.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 2047543217 is about 45249.7869276751. The cubic root of 2047543217 is about 1269.8264207764.

The spelling of 2047543217 in words is "two billion, forty-seven million, five hundred forty-three thousand, two hundred seventeen".