985335777 has 12 divisors (see below), whose sum is σ = 1453545600. Its totient is φ = 642913848.

The previous prime is 985335737. The next prime is 985335779. The reversal of 985335777 is 777533589.

It is a de Polignac number, because none of the positive numbers 2^k-985335777 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (985335779) 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 in 11 ways as a sum of consecutive naturals, for example, 1164277 + ... + 1165122.

It is an arithmetic number, because the mean of its divisors is an integer number (121128800).

Almost surely, 2^985335777 is an apocalyptic number.

It is an amenable number.

985335777 is a deficient number, since it is larger than the sum of its proper divisors (468209823).

985335777 is a wasteful number, since it uses less digits than its factorization.

985335777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329452 (or 2329449 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 54.

The square root of 985335777 is about 31390.0585695535. The cubic root of 985335777 is about 995.0878358188.

The spelling of 985335777 in words is "nine hundred eighty-five million, three hundred thirty-five thousand, seven hundred seventy-seven".