985771607 has 2 divisors, whose sum is σ = 985771608. Its totient is φ = 985771606.

The previous prime is 985771601. The next prime is 985771637. The reversal of 985771607 is 706177589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985771607 - 2⁶ = 985771543 is a prime.

It is a super-2 number, since 2×985771607² = 1943491322334724898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985771601) 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, 492885803 + 492885804.

It is an arithmetic number, because the mean of its divisors is an integer number (492885804).

Almost surely, 2^985771607 is an apocalyptic number.

985771607 is a deficient number, since it is larger than the sum of its proper divisors (1).

985771607 is an equidigital number, since it uses as much as digits as its factorization.

985771607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 50.

The square root of 985771607 is about 31396.9999681498. Note that the first 4 decimals coincide. The cubic root of 985771607 is about 995.2345286907.

The spelling of 985771607 in words is "nine hundred eighty-five million, seven hundred seventy-one thousand, six hundred seven".