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988929889 is a prime number
BaseRepresentation
bin111010111100011…
…101111101100001
32112220211211202221
4322330131331201
54011131224024
6242044111041
733335523343
oct7274357541
92486754687
10988929889
11468252732
12237235481
13129b6251c
14954a9293
155bc463e4
hex3af1df61

988929889 has 2 divisors, whose sum is σ = 988929890. Its totient is φ = 988929888.

The previous prime is 988929871. The next prime is 988929901.

988929889 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738752400 + 250177489 = 27180^2 + 15817^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 988929889 - 225 = 955375457 is a prime.

It is not a weakly prime, because it can be changed into another prime (988929869) 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, 494464944 + 494464945.

It is an arithmetic number, because the mean of its divisors is an integer number (494464945).

Almost surely, 2988929889 is an apocalyptic number.

It is an amenable number.

988929889 is a deficient number, since it is larger than the sum of its proper divisors (1).

988929889 is an equidigital number, since it uses as much as digits as its factorization.

988929889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53747712, while the sum is 70.

The square root of 988929889 is about 31447.2556672279. The cubic root of 988929889 is about 996.2962622623.

The spelling of 988929889 in words is "nine hundred eighty-eight million, nine hundred twenty-nine thousand, eight hundred eighty-nine".