847995361 has 2 divisors, whose sum is σ = 847995362. Its totient is φ = 847995360.

The previous prime is 847995353. The next prime is 847995391. The reversal of 847995361 is 163599748.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844251136 + 3744225 = 29056^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 847995361 - 2³ = 847995353 is a prime.

It is a super-2 number, since 2×847995361² = 1438192264555040642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 847995299 and 847995308.

It is not a weakly prime, because it can be changed into another prime (847995391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423997680 + 423997681.

It is an arithmetic number, because the mean of its divisors is an integer number (423997681).

Almost surely, 2^847995361 is an apocalyptic number.

It is an amenable number.

847995361 is a deficient number, since it is larger than the sum of its proper divisors (1).

847995361 is an equidigital number, since it uses as much as digits as its factorization.

847995361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 847995361 is about 29120.3599050561. The cubic root of 847995361 is about 946.5229722358.

The spelling of 847995361 in words is "eight hundred forty-seven million, nine hundred ninety-five thousand, three hundred sixty-one".