947116843 has 2 divisors, whose sum is σ = 947116844. Its totient is φ = 947116842.

The previous prime is 947116823. The next prime is 947116853. The reversal of 947116843 is 348611749.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 947116843 - 2⁵ = 947116811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 947116843.

It is not a weakly prime, because it can be changed into another prime (947116823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473558421 + 473558422.

It is an arithmetic number, because the mean of its divisors is an integer number (473558422).

Almost surely, 2^947116843 is an apocalyptic number.

947116843 is a deficient number, since it is larger than the sum of its proper divisors (1).

947116843 is an equidigital number, since it uses as much as digits as its factorization.

947116843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 947116843 is about 30775.2634919671. The cubic root of 947116843 is about 982.0520803552.

The spelling of 947116843 in words is "nine hundred forty-seven million, one hundred sixteen thousand, eight hundred forty-three".