985818803 has 2 divisors, whose sum is σ = 985818804. Its totient is φ = 985818802.

The previous prime is 985818767. The next prime is 985818851. The reversal of 985818803 is 308818589.

It is a weak prime.

It is an emirp because it is prime and its reverse (308818589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985818803 - 2¹⁶ = 985753267 is a prime.

It is not a weakly prime, because it can be changed into another prime (985818863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492909401 + 492909402.

It is an arithmetic number, because the mean of its divisors is an integer number (492909402).

Almost surely, 2^985818803 is an apocalyptic number.

985818803 is a deficient number, since it is larger than the sum of its proper divisors (1).

985818803 is an equidigital number, since it uses as much as digits as its factorization.

985818803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 50.

The square root of 985818803 is about 31397.7515596260. The cubic root of 985818803 is about 995.2504114567.

The spelling of 985818803 in words is "nine hundred eighty-five million, eight hundred eighteen thousand, eight hundred three".