985357523 has 2 divisors, whose sum is σ = 985357524. Its totient is φ = 985357522.

The previous prime is 985357507. The next prime is 985357603. The reversal of 985357523 is 325753589.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985357523 - 2⁴ = 985357507 is a prime.

It is not a weakly prime, because it can be changed into another prime (985357123) 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, 492678761 + 492678762.

It is an arithmetic number, because the mean of its divisors is an integer number (492678762).

Almost surely, 2^985357523 is an apocalyptic number.

985357523 is a deficient number, since it is larger than the sum of its proper divisors (1).

985357523 is an equidigital number, since it uses as much as digits as its factorization.

985357523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 47.

The square root of 985357523 is about 31390.4049511949. The cubic root of 985357523 is about 995.0951561731.

It can be divided in two parts, 9853 and 57523, that added together give a palindrome (67376).

The spelling of 985357523 in words is "nine hundred eighty-five million, three hundred fifty-seven thousand, five hundred twenty-three".