984898857697 has 2 divisors, whose sum is σ = 984898857698. Its totient is φ = 984898857696.

The previous prime is 984898857479. The next prime is 984898857731. The reversal of 984898857697 is 796758898489.

984898857697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 712916790336 + 271982067361 = 844344^2 + 521519^2 .

It is a cyclic number.

It is not a de Polignac number, because 984898857697 - 2¹⁵ = 984898824929 is a prime.

It is a super-2 number, since 2×984898857697² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (984898851697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492449428848 + 492449428849.

It is an arithmetic number, because the mean of its divisors is an integer number (492449428849).

Almost surely, 2^984898857697 is an apocalyptic number.

It is an amenable number.

984898857697 is a deficient number, since it is larger than the sum of its proper divisors (1).

984898857697 is an equidigital number, since it uses as much as digits as its factorization.

984898857697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17557585920, while the sum is 88.

The spelling of 984898857697 in words is "nine hundred eighty-four billion, eight hundred ninety-eight million, eight hundred fifty-seven thousand, six hundred ninety-seven".