847799243 has 2 divisors, whose sum is σ = 847799244. Its totient is φ = 847799242.

The previous prime is 847799221. The next prime is 847799257. The reversal of 847799243 is 342997748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 847799243 - 2⁶ = 847799179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (847799263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423899621 + 423899622.

It is an arithmetic number, because the mean of its divisors is an integer number (423899622).

Almost surely, 2^847799243 is an apocalyptic number.

847799243 is a deficient number, since it is larger than the sum of its proper divisors (1).

847799243 is an equidigital number, since it uses as much as digits as its factorization.

847799243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 53.

The square root of 847799243 is about 29116.9923412429. The cubic root of 847799243 is about 946.4499983678.

The spelling of 847799243 in words is "eight hundred forty-seven million, seven hundred ninety-nine thousand, two hundred forty-three".