985222547 has 2 divisors, whose sum is σ = 985222548. Its totient is φ = 985222546.

The previous prime is 985222541. The next prime is 985222663. The reversal of 985222547 is 745222589.

It is a weak prime.

It is an emirp because it is prime and its reverse (745222589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985222547 - 2⁴ = 985222531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 985222498 and 985222507.

It is not a weakly prime, because it can be changed into another prime (985222541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492611273 + 492611274.

It is an arithmetic number, because the mean of its divisors is an integer number (492611274).

Almost surely, 2^985222547 is an apocalyptic number.

985222547 is a deficient number, since it is larger than the sum of its proper divisors (1).

985222547 is an equidigital number, since it uses as much as digits as its factorization.

985222547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 44.

The square root of 985222547 is about 31388.2549212281. The cubic root of 985222547 is about 995.0497174723.

The spelling of 985222547 in words is "nine hundred eighty-five million, two hundred twenty-two thousand, five hundred forty-seven".