985121697 has 16 divisors (see below), whose sum is σ = 1501931520. Its totient is φ = 562629072.

The previous prime is 985121681. The next prime is 985121713. The reversal of 985121697 is 796121589.

It is an interprime number because it is at equal distance from previous prime (985121681) and next prime (985121713).

It is not a de Polignac number, because 985121697 - 2⁴ = 985121681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (985121647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31954 + ... + 54692.

It is an arithmetic number, because the mean of its divisors is an integer number (93870720).

Almost surely, 2^985121697 is an apocalyptic number.

It is an amenable number.

985121697 is a deficient number, since it is larger than the sum of its proper divisors (516809823).

985121697 is a wasteful number, since it uses less digits than its factorization.

985121697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24812.

The product of its digits is 272160, while the sum is 48.

The square root of 985121697 is about 31386.6483874911. The cubic root of 985121697 is about 995.0157643353.

The spelling of 985121697 in words is "nine hundred eighty-five million, one hundred twenty-one thousand, six hundred ninety-seven".