863051243 has 2 divisors, whose sum is σ = 863051244. Its totient is φ = 863051242.

The previous prime is 863051213. The next prime is 863051249. The reversal of 863051243 is 342150368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 863051243 - 2¹⁰ = 863050219 is a prime.

It is not a weakly prime, because it can be changed into another prime (863051249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431525621 + 431525622.

It is an arithmetic number, because the mean of its divisors is an integer number (431525622).

Almost surely, 2^863051243 is an apocalyptic number.

863051243 is a deficient number, since it is larger than the sum of its proper divisors (1).

863051243 is an equidigital number, since it uses as much as digits as its factorization.

863051243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 863051243 is about 29377.7337961933. The cubic root of 863051243 is about 952.0918789904.

The spelling of 863051243 in words is "eight hundred sixty-three million, fifty-one thousand, two hundred forty-three".