985663477 has 2 divisors, whose sum is σ = 985663478. Its totient is φ = 985663476.

The previous prime is 985663457. The next prime is 985663537. The reversal of 985663477 is 774366589.

It is a happy number.

985663477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936298801 + 49364676 = 30599^2 + 7026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985663477 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 (985663457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492831738 + 492831739.

It is an arithmetic number, because the mean of its divisors is an integer number (492831739).

Almost surely, 2^985663477 is an apocalyptic number.

It is an amenable number.

985663477 is a deficient number, since it is larger than the sum of its proper divisors (1).

985663477 is an equidigital number, since it uses as much as digits as its factorization.

985663477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 55.

The square root of 985663477 is about 31395.2779411172. The cubic root of 985663477 is about 995.1981380285.

The spelling of 985663477 in words is "nine hundred eighty-five million, six hundred sixty-three thousand, four hundred seventy-seven".