985897183 has 2 divisors, whose sum is σ = 985897184. Its totient is φ = 985897182.

The previous prime is 985897181. The next prime is 985897229. The reversal of 985897183 is 381798589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985897183 - 2¹ = 985897181 is a prime.

Together with 985897181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985897181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492948591 + 492948592.

It is an arithmetic number, because the mean of its divisors is an integer number (492948592).

Almost surely, 2^985897183 is an apocalyptic number.

985897183 is a deficient number, since it is larger than the sum of its proper divisors (1).

985897183 is an equidigital number, since it uses as much as digits as its factorization.

985897183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 58.

The square root of 985897183 is about 31398.9997133667. Note that the first 3 decimals coincide. The cubic root of 985897183 is about 995.2767873856.

The spelling of 985897183 in words is "nine hundred eighty-five million, eight hundred ninety-seven thousand, one hundred eighty-three".