985397559 has 4 divisors (see below), whose sum is σ = 1313863416. Its totient is φ = 656931704.

The previous prime is 985397531. The next prime is 985397563. The reversal of 985397559 is 955793589.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 985397559 - 2²⁹ = 448526647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985397059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164232924 + ... + 164232929.

It is an arithmetic number, because the mean of its divisors is an integer number (328465854).

Almost surely, 2^985397559 is an apocalyptic number.

985397559 is a deficient number, since it is larger than the sum of its proper divisors (328465857).

985397559 is a wasteful number, since it uses less digits than its factorization.

985397559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328465856.

The product of its digits is 15309000, while the sum is 60.

The square root of 985397559 is about 31391.0426555092. The cubic root of 985397559 is about 995.1086332070.

The spelling of 985397559 in words is "nine hundred eighty-five million, three hundred ninety-seven thousand, five hundred fifty-nine".