985901012 has 6 divisors (see below), whose sum is σ = 1725326778. Its totient is φ = 492950504.

The previous prime is 985901011. The next prime is 985901017. The reversal of 985901012 is 210109589.

It can be written as a sum of positive squares in only one way, i.e., 974313796 + 11587216 = 31214^2 + 3404^2 .

It is a super-3 number, since 3×985901012³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985901011) 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, 123237623 + ... + 123237630.

It is an arithmetic number, because the mean of its divisors is an integer number (287554463).

Almost surely, 2^985901012 is an apocalyptic number.

It is an amenable number.

985901012 is a deficient number, since it is larger than the sum of its proper divisors (739425766).

985901012 is a wasteful number, since it uses less digits than its factorization.

985901012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246475257 (or 246475255 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 985901012 is about 31399.0606865874. The cubic root of 985901012 is about 995.2780758600.

The spelling of 985901012 in words is "nine hundred eighty-five million, nine hundred one thousand, twelve".