985344931 has 2 divisors, whose sum is σ = 985344932. Its totient is φ = 985344930.

The previous prime is 985344929. The next prime is 985344967. The reversal of 985344931 is 139443589.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (139443589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985344931 - 2¹ = 985344929 is a prime.

It is a super-2 number, since 2×985344931² = 1941809266094789522, which contains 22 as substring.

Together with 985344929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (985374931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492672465 + 492672466.

It is an arithmetic number, because the mean of its divisors is an integer number (492672466).

Almost surely, 2^985344931 is an apocalyptic number.

985344931 is a deficient number, since it is larger than the sum of its proper divisors (1).

985344931 is an equidigital number, since it uses as much as digits as its factorization.

985344931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 985344931 is about 31390.2043797106. The cubic root of 985344931 is about 995.0909173423.

The spelling of 985344931 in words is "nine hundred eighty-five million, three hundred forty-four thousand, nine hundred thirty-one".