985930731 has 32 divisors (see below), whose sum is σ = 1504419840. Its totient is φ = 637761600.

The previous prime is 985930721. The next prime is 985930733. The reversal of 985930731 is 137039589.

It is a happy number.

It is not a de Polignac number, because 985930731 - 2⁹ = 985930219 is a prime.

It is a super-2 number, since 2×985930731² = 1944118812660388722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (985930733) 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 31 ways as a sum of consecutive naturals, for example, 209106 + ... + 213768.

It is an arithmetic number, because the mean of its divisors is an integer number (47013120).

Almost surely, 2^985930731 is an apocalyptic number.

985930731 is a deficient number, since it is larger than the sum of its proper divisors (518489109).

985930731 is a wasteful number, since it uses less digits than its factorization.

985930731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904 (or 4898 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 985930731 is about 31399.5339296621. The cubic root of 985930731 is about 995.2880763136.

The spelling of 985930731 in words is "nine hundred eighty-five million, nine hundred thirty thousand, seven hundred thirty-one".