985235057 has 2 divisors, whose sum is σ = 985235058. Its totient is φ = 985235056.

The previous prime is 985235039. The next prime is 985235077. The reversal of 985235057 is 750532589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688327696 + 296907361 = 26236^2 + 17231^2 .

It is a cyclic number.

It is not a de Polignac number, because 985235057 - 2⁶ = 985234993 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 985234999 and 985235017.

It is not a weakly prime, because it can be changed into another prime (985235077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492617528 + 492617529.

It is an arithmetic number, because the mean of its divisors is an integer number (492617529).

Almost surely, 2^985235057 is an apocalyptic number.

It is an amenable number.

985235057 is a deficient number, since it is larger than the sum of its proper divisors (1).

985235057 is an equidigital number, since it uses as much as digits as its factorization.

985235057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 985235057 is about 31388.4541989567. The cubic root of 985235057 is about 995.0539290484.

The spelling of 985235057 in words is "nine hundred eighty-five million, two hundred thirty-five thousand, fifty-seven".