984898857685 has 4 divisors (see below), whose sum is σ = 1181878629228. Its totient is φ = 787919086144.

The previous prime is 984898857479. The next prime is 984898857697. The reversal of 984898857685 is 586758898489.

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

It can be written as a sum of positive squares in 2 ways, for example, as 787618975441 + 197279882244 = 887479^2 + 444162^2 .

It is a cyclic number.

It is not a de Polignac number, because 984898857685 - 2¹⁷ = 984898726613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98489885764 + ... + 98489885773.

It is an arithmetic number, because the mean of its divisors is an integer number (295469657307).

Almost surely, 2^984898857685 is an apocalyptic number.

It is an amenable number.

984898857685 is a deficient number, since it is larger than the sum of its proper divisors (196979771543).

984898857685 is a wasteful number, since it uses less digits than its factorization.

984898857685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196979771542.

The product of its digits is 11147673600, while the sum is 85.

The spelling of 984898857685 in words is "nine hundred eighty-four billion, eight hundred ninety-eight million, eight hundred fifty-seven thousand, six hundred eighty-five".