2840450047 has 2 divisors, whose sum is σ = 2840450048. Its totient is φ = 2840450046.

The previous prime is 2840450017. The next prime is 2840450071. The reversal of 2840450047 is 7400540482.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2840450047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2840449994 and 2840450021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2840450017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1420225023 + 1420225024.

It is an arithmetic number, because the mean of its divisors is an integer number (1420225024).

Almost surely, 2^2840450047 is an apocalyptic number.

2840450047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2840450047 is an equidigital number, since it uses as much as digits as its factorization.

2840450047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 2840450047 is about 53295.8727013640. The cubic root of 2840450047 is about 1416.2145501916.

The spelling of 2840450047 in words is "two billion, eight hundred forty million, four hundred fifty thousand, forty-seven".