985386893 has 2 divisors, whose sum is σ = 985386894. Its totient is φ = 985386892.

The previous prime is 985386881. The next prime is 985386917. The reversal of 985386893 is 398683589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779693929 + 205692964 = 27923^2 + 14342^2 .

It is an emirp because it is prime and its reverse (398683589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985386893 - 2²⁸ = 716951437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985386833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492693446 + 492693447.

It is an arithmetic number, because the mean of its divisors is an integer number (492693447).

Almost surely, 2^985386893 is an apocalyptic number.

It is an amenable number.

985386893 is a deficient number, since it is larger than the sum of its proper divisors (1).

985386893 is an equidigital number, since it uses as much as digits as its factorization.

985386893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11197440, while the sum is 59.

The square root of 985386893 is about 31390.8727658216. The cubic root of 985386893 is about 995.1050428229.

The spelling of 985386893 in words is "nine hundred eighty-five million, three hundred eighty-six thousand, eight hundred ninety-three".