847231061 has 2 divisors, whose sum is σ = 847231062. Its totient is φ = 847231060.

The previous prime is 847231051. The next prime is 847231111. The reversal of 847231061 is 160132748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 842740900 + 4490161 = 29030^2 + 2119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-847231061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (847231051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423615530 + 423615531.

It is an arithmetic number, because the mean of its divisors is an integer number (423615531).

Almost surely, 2^847231061 is an apocalyptic number.

It is an amenable number.

847231061 is a deficient number, since it is larger than the sum of its proper divisors (1).

847231061 is an equidigital number, since it uses as much as digits as its factorization.

847231061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 847231061 is about 29107.2338259753. The cubic root of 847231061 is about 946.2385190449.

The spelling of 847231061 in words is "eight hundred forty-seven million, two hundred thirty-one thousand, sixty-one".