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8690345087 is a prime number
BaseRepresentation
bin10000001011111110…
…00010010001111111
3211102122102021022212
420011333002101333
5120244212020322
63554200131035
7425232500024
oct100577022177
924378367285
108690345087
11375a522986
121826466a7b
13a86581a38
145c624b54b
1535ce120e2
hex205fc247f

8690345087 has 2 divisors, whose sum is σ = 8690345088. Its totient is φ = 8690345086.

The previous prime is 8690345057. The next prime is 8690345101. The reversal of 8690345087 is 7805430968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8690345087 - 228 = 8421909631 is a prime.

It is a super-3 number, since 3×86903450873 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8690345017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4345172543 + 4345172544.

It is an arithmetic number, because the mean of its divisors is an integer number (4345172544).

Almost surely, 28690345087 is an apocalyptic number.

8690345087 is a deficient number, since it is larger than the sum of its proper divisors (1).

8690345087 is an equidigital number, since it uses as much as digits as its factorization.

8690345087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 8690345087 is about 93222.0203975434. The cubic root of 8690345087 is about 2055.9490163054.

The spelling of 8690345087 in words is "eight billion, six hundred ninety million, three hundred forty-five thousand, eighty-seven".