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989695829 is a prime number
BaseRepresentation
bin111010111111011…
…000111101010101
32112222021202110002
4322333120331111
54011330231304
6242112341045
733345163403
oct7277307525
92488252402
10989695829
11468726141
12237544785
1312a070045
1495628473
155bd4831e
hex3afd8f55

989695829 has 2 divisors, whose sum is σ = 989695830. Its totient is φ = 989695828.

The previous prime is 989695799. The next prime is 989695831. The reversal of 989695829 is 928596989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663062500 + 326633329 = 25750^2 + 18073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-989695829 is a prime.

Together with 989695831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989695849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494847914 + 494847915.

It is an arithmetic number, because the mean of its divisors is an integer number (494847915).

Almost surely, 2989695829 is an apocalyptic number.

It is an amenable number.

989695829 is a deficient number, since it is larger than the sum of its proper divisors (1).

989695829 is an equidigital number, since it uses as much as digits as its factorization.

989695829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 65.

The square root of 989695829 is about 31459.4314792877. The cubic root of 989695829 is about 996.5534110049.

The spelling of 989695829 in words is "nine hundred eighty-nine million, six hundred ninety-five thousand, eight hundred twenty-nine".