1979847343 has 2 divisors, whose sum is σ = 1979847344. Its totient is φ = 1979847342.

The previous prime is 1979847307. The next prime is 1979847377. The reversal of 1979847343 is 3437489791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1979847343 - 2¹³ = 1979839151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1979847943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989923671 + 989923672.

It is an arithmetic number, because the mean of its divisors is an integer number (989923672).

Almost surely, 2^1979847343 is an apocalyptic number.

1979847343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1979847343 is an equidigital number, since it uses as much as digits as its factorization.

1979847343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The square root of 1979847343 is about 44495.4755340360. The cubic root of 1979847343 is about 1255.6749633499.

The spelling of 1979847343 in words is "one billion, nine hundred seventy-nine million, eight hundred forty-seven thousand, three hundred forty-three".